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PDF W78C374 Data sheet ( Hoja de datos )

Número de pieza W78C374
Descripción MONITOR CONTROLLER
Fabricantes Winbond 
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No Preview Available ! W78C374 Hoja de datos, Descripción, Manual

Preliminary W78E378/W78C378/W78C374
MONITOR CONTROLLER
GENERAL DESCRIPTION
The W78E378, W78C378 and W78C374B are ASIC which is a stand-alone high-performance
microcontroller specially designed for monitor control applications. The device integrates the
embedded 80C31 microcontroller core, on-chip MTP or Mask ROM, 576 bytes of RAM, and a number
of dedicated hardware monitor functions. Additional special function registers are incorporated to
control the on-chip peripheral hardware. The chip is used to control the interface signal of other
devices in the monitor and to process the video sync signals. Because of the highly integration and
Flash cell for program memory, the device can offer users the competitive advantages of low cost
and reduced development time.
FEATURES
80C31 MCU Core Embedded
32K Bytes MTP-ROM (W78E378)
32K Bytes Mask-ROM (W78C378)
16K Bytes Mask-ROM (W78C374B)
Total 576 Bytes of On-chip Data RAM
256 bytes accessed as in the 80C32
320 bytes accessed as external data memory via "MOVX @Ri"
PWM DACs
Eight 8-bit Static PWM DACs: DAC0DAC8
Three 8-bit Dynamic PWM DACs: DAC9DAC10
Sync Processor
Horizontal & Vertical Polarity Detector
Sync Separator for Composite Sync
12-bit Horizontal & Vertical Frequency Counter
Programmable Dummy Frequency Generator
Programmable H-clamp Pulse Output
SOA Interrupt
Hsync/2 Output
Serial Ports:
DDC1 Port- support DDC1
SIO1 & SIO2 Ports - each can support DDC2B/2B+/2Bi/2AB (each has 2 slave addresses)
Two 16-bit Timer/Counters (8031's Timer0 & Timer1)
One External Interrupt Input (8031's INT0 )
One Parabola Interrupt Generator
One ADC with 7 Multiplexed Analog Inputs
Two 12 mA(min) Output Pins for Driving LEDs
Watchdog Timer (222/Fosc = 0.42s @Fosc = 10 MHz)
Power Low Reset
Frequency: 10 MHz max. (with the same performance as a normal 8051 that uses 20 MHz)
Packaged in 40/32-pin 600 mil DIP & 44-pin PLCC
Publication Release Date: December 1999
- 1 - Revision A1

1 page




W78C374 pdf
Preliminary W78E378/W78C378/W78C374
Pin Description, Continued
PIN NAME I/O
DESCRIPTION
P4.0 (HFI)
I/O P4.0 Output, HFI Input
Sink/Source current: 4 mA/-4 mA
P4.1
O P4.1 Output
Sink/Source current: 4 mA/-4 mA
P4.2
O P4.2 Output
Sink/Source current: 4 mA/-4 mA
P4.3
O P4.3 Output
Sink/Source current: 4 mA/-4 mA
P4.4 (SCL2) I/O P4.4 Output, SIO2 port serial clock I/O
Schmitt trigger input
VIH/VIL = 0.7 VDD/0.3 VDD, V+/V- = ~0.6 VDD/0.4 VDD
Open-drain output, sink current: 8 mA
P4.5 (SDA2) I/O P4.5 Output, SIO2 port serial data I/O
Schmitt trigger input
VIH/VIL = 0.7 VDD/0.3 VDD, V+/V- = ~0.6 VDD/0.4 VDD
Open-drain output, sink current: 8 mA
P4.6
O P4.6 Output
Sink/Source current: 4 mA/-4 mA
P4.7 (HFO)
O P4.7 Output, HFO Output
Sink/Source current: 4 mA/-4 mA
Publication Release Date: December 1999
- 5 - Revision A1

5 Page





W78C374 arduino
Preliminary W78E378/W78C378/W78C374
*P1SF: Port1 special function output enable register (Write Only)
BIT NAME
FUNCTION
0 P10SF Port 1.0 Special Function enable (DAC0 output)
1 P11SF Port 1.1 Special Function enable (DAC1 output)
2 P12SF Port 1.2 Special Function enable (DAC2 output)
3 P13SF Port 1.3 Special Function enable (DAC3 output)
4 P14SF Port 1.4 Special Function enable (DAC4 output)
5 P15SF Port 1.5 Special Function enable (DAC5 output)
6 P16SF Port 1.6 Special Function enable (DAC6 output)
7 P17SF Port 1.7 Special Function enable (DAC7 output)
*P2SF: Port2 special function output enable register (Write Only)
BIT NAME
FUNCTION
0 P20SF Port 2.0 Special Function enable (DAC8 output)
1 P21SF Port 2.1 Special Function enable (DAC9 output)
2 P22SF Port 2.2 Special Function enable (DAC10 output)
3 P23SF Port 2.3 Special Function enable (Hclamp output)
4 P24SF Port 2.4 Special Function enable (ADC0 input)
5 P25SF Port 2.5 Special Function enable (ADC1 input)
6 P26SF Port 2.6 Special Function enable (ADC2 input)
7 P27SF Port 2.7 Special Function enable (ADC3 input)
*P3SF: Port3 special function output enable register (Write Only)
BIT NAME
FUNCTION
02 - -
3 P33SF Port 3.3 Special Function enable (HOUT)
4 P34SF Port 3.4 Special Function enable (VOUT)
57 - -
*HFCOUNTL: Horizontal frequency counter register, low byte (Read Only)
BIT NAME
FUNCTION
0 HF0 H frequency count bit 0
1 HF1 H frequency count bit 1
2 HF2 H frequency count bit 2
3 HF3 H frequency count bit 3
4 HF4 H frequency count bit 4
5 HF5 H frequency count bit 5
6 HF6 H frequency count bit 6
7 HF7 H frequency count bit 7
- 11 -
Publication Release Date: December 1999
Revision A1

11 Page







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