gc80c521a CORERIVER Semiconductor, gc80c521a Datasheet - Page 11

• Manufacturer Part Number: gc80c521a
• Description: Flash / Isp / Iap 8-bit Turbo Microcontrollers
• Manufacturer: CORERIVER Semiconductor

MDS_SDA
MDS_SCL
P0[7:0]
Symbol
RESET
XTAL1
XTAL2
5. Pin Descriptions
PSEN
VDD
VSS
ALE
EA
Input/Output
Input/Output
Input/Output
Input/Output
Input/Output
Direction
Output
Input
Input
Input
Input
Input
Power Supply
Ground
External Reset
The pull-down resistor is turned on at power-on.
Input to the inverting oscillator amplifier
Output from the inverting oscillator amplifier
External ROM Access Enable
Address Latch Enable (If ALEOFF is set, active only for external RAM access)
This pin is also used for the parallel programming of FLASH memory.
Program Strobe Enable. Pull-up. Used for Special Input only.
Serial Data pin for ISP/MDS.
Serial Clock pin for ISP/MDS.
access external RAM.
An 8-bit open-drain or push-pull I/O port or ADC Input.
Note that the output is fully driven (push-pull) when P0 drives address/data to
• P0.0 ~ P0.7
• P0.0
• P0.1
• P0.2
• P0.3
• P0.4
• P0.5
• P0.6
• P0.7
ADC0.6
ADC0.7
ADC0.0
ADC0.1
ADC0.2
ADC0.3
ADC0.4
ADC0.5
AD0 ~ AD7 : Low address or data input/output
Description
: A/D converter Input 0.4
: A/D converter Input 0.5
: A/D converter Input 0.6
: A/D converter Input 0.7
: A/D converter Input 0.0
: A/D converter Input 0.1
: A/D converter Input 0.2
: A/D converter Input 0.3
MiDAS1.0B Family
•P4.7 / MDS_SDA
•P4.5 / MOSI_A / PWM3.7_A
•P4.4 / MISO_A / PWM3.6_A
•P4.6 / MDS_SCL
•P4.7 / RESET
•P4.6 / EA
•P0.0 : AD0 / ADC0.0
•P0.1 : AD1 / ADC0.1
•P0.2 : AD2 / ADC0.2
•P0.3 : AD3 / ADC0.3
•P0.4 : AD4 / ADC0.4
•P0.5 : AD5 / ADC0.5
•P0.6 : AD6 / ADC0.6
•P0.7 : AD7 / ADC0.7
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