DataSheet.es    


PDF Z80230 Data sheet ( Hoja de datos )

Número de pieza Z80230
Descripción Enhanced Serial Communications Controller
Fabricantes Zilog. 
Logotipo Zilog. Logotipo



Hay una vista previa y un enlace de descarga de Z80230 (archivo pdf) en la parte inferior de esta página.


Total 30 Páginas

No Preview Available ! Z80230 Hoja de datos, Descripción, Manual

Z80230/Z85230/L
Enhanced Serial
Communications Controller
Product Specification
PS005309-0515
Copyright ©2015 by Zilog®, Inc. All rights reserved.
www.zilog.com

1 page




Z80230 pdf
Z80230/Z85230/L
Product Specification
v
Z85230/L Write Cycle Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Z85230/L Interrupt Acknowledge Cycle Timing . . . . . . . . . . . . . . . . . . . . . . 74
Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Standard Test Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Capacitance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Z85230/L AC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Z80230/Z85230/L Errata . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
IUS Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
IUS Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
RTS Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
RTS Problem Solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102
Automatic TxD Forced High Problem Description . . . . . . . . . . . . . . . . . . . 102
Automatic TxD Forced High Problem Solutions . . . . . . . . . . . . . . . . . . . . 103
SDLC FIFO Overflow Problem Description . . . . . . . . . . . . . . . . . . . . . . . . 103
SDLC FIFO Overflow Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Default RR0 Value Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Default RR0 Value Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Default RR10 Value Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . 104
Default RR10 Value Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
CRC Problem Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
CRC Problem Solution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Package Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105
Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Z8523L (3.3V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Z85230 (5V) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Part Number Suffix Designation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
Customer Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
PS005309-0515
Table of Contents

5 Page





Z80230 arduino
Z80230/Z85230/L
Product Specification
6
INT (Interrupt (Output, Open-Drain, Active Low))—This pin activates when the ESCC
requests an interrupt. The INT is an open-drain output.
INTACK (Interrupt Acknowledge (Input, Active Low))—This pin is a strobe which indi-
cates that an Interrupt Acknowledge Cycle is in progress. During this cycle, the ESCC
interrupt daisy chain is resolved. The device can return an interrupt vector that may be
encoded with the type of interrupt pending. During the acknowledge cycle, if IEI is High,
the ESCC places the interrupt vector on the data bus when RD goes active for the Z85230/
L, or when DS goes active for the Z80230. INTACK is latched by the rising edge of
PCLK.
Pin Descriptions Exclusive to the Z85230/L
The pin description for pins exclusive to Z85230/L is provided below:
Pins D7–D0 (Data Bus (Bidirectional, tristate))—These pins carry data and commands
to and from the Z85230/L.
CE (Chip Enable (Input, Active Low))—This pin selects the Z85230/L for a Read or
Write operation.
RD ((Read (input, Active Low))—This pin indicates a Read operation and, when the
Z85230/L is selected, enables the Z85230/L’s bus drivers. During the Interrupt Acknowl-
edge cycle, RD gates the interrupt vector onto the bus if the Z85230/L is the highest prior-
ity device requesting an interrupt.
WR (Write (Input, Active Low))—When the Z85230/L is selected, this pin denotes a
Write operation, which indicates that the CPU writes command bytes or data to the
Z85230/L write registers.
Note: WR and RD going Low simultaneously is interpreted as a Reset.
A/B (Channel A/Channel B (Input))—This pin selects the channel in which the Read or
Write operation occurs. A High selects Channel A and a Low selects Channel B.
D/C (Data/Control Select (Input))—This signal defines the type of information trans-
ferred to or from the Z85230/L. A High indicates data transfer and a Low indicates a com-
mand transfer.
Pin Descriptions Exclusive to the Z80230
The pin description for pins exclusive to Z80230 is provided below:
AD7–AD0 (Address/Data Bus (Bidirectional, Active High, tristate))—These multi-
plexed lines carry register addresses to the Z80230 as well as data or control information
to and from the Z80230.
R/W (Read/Write (Input, Read Active High))—This pin specifies if the operation to be
performed is a Read or Write operation.
PS005309-0515
Pin Descriptions

11 Page







PáginasTotal 30 Páginas
PDF Descargar[ Datasheet Z80230.PDF ]




Hoja de datos destacado

Número de piezaDescripciónFabricantes
Z80230Enhanced Serial Communications ControllerZilog.
Zilog.

Número de piezaDescripciónFabricantes
SLA6805M

High Voltage 3 phase Motor Driver IC.

Sanken
Sanken
SDC1742

12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.

Analog Devices
Analog Devices


DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.


DataSheet.es    |   2020   |  Privacy Policy  |  Contacto  |  Buscar