gc80c521a CORERIVER Semiconductor, gc80c521a Datasheet - Page 15

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

P4[7:0]
Symbol
5. Pin Descriptions
Input/Output
Direction
An 8-bit open-drain or push-pull I/O port.
• P4.0
• P4.1
• P4.0
• P4.1
• P4.2
• P4.3
• P4.4
• P4.5
• P4.0
• P4.1
• P4.4
• P4.5
• P4.2
• P4.3
(Cont’d)
RXD_A
TXD_A
INT4_A : External Interrupt 4 Alternative
INT5_A : External Interrupt 5 Alternative
I2C_SDA : I2C Serial Data
I2C_SCL : I2C Serial Clock
SSB
SCLK
MISO
MOSI
MISO_A : SPI Master Input Slave Output Alternative
MOSI_A : SPI Master Output Slave Input Alternative
PWM3.6_A
PWM3.7_A
Description
: SPI Slave Select Bar
: SPI Serial Clock
: SPI Master Input Slave Output
: SPI Master Output Slave Input
: UART Serial Port Input Alternative
: UART Serial Port Output Alternative
: PWM output 3.6 Alternative
: PWM output 3.7 Alternative
MiDAS1.0B Family
•P4.0 : SSB / I2C_SDA / RXD_A
•P4.1 : SCLK / I2C_SCL / TXD_A
•P4.2 : MISO / INT4_A
•P4.3 : MOSI / INT5_A
•P4.4 : XTAL2 / MISO_A /
PWM3.6_A
•P4.5 : XTAL1 / MOSI_A /
PWM3.7_A
•P4.6 : EA / MDS_SCL
•P4.7 : RESET / MDS_SDA
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