ADUC7121 Analog Devices, ADUC7121 Datasheet - Page 54

• Manufacturer Part Number: ADUC7121
• Description: Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI MCU
• Manufacturer: Analog Devices

Specifications of ADUC7121

• Mcu Core: ARM7 TDMI
• Mcu Speed (mips): 40
• Sram (bytes): 8192Bytes
• Gpio Pins: 32
• Adc # Channels: 9

ADuC7121
Table 73. GPIO Pin Function Designations
Port
0
1
2
3
1
Reconfiguring these pins disables JTAG mode. Erase part to reenable JTAG access after changing default value.
Pin
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
1
1
00
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
GPIO
TDI (JTAG)
TDO (JTAG)
GPIO
GPIO
GPIO
GPIO
GPIO/IRQ0
GPIO/IRQ1
GPIO
GPIO/IRQ2
GPIO
GPIO
GPIO/IRQ3
GPIO
GPIO
GPIO
GPIO/IRQ4
GPIO/IRQ5
GPIO
GPIO
GPIO
GPIO/BM
SPICLK
01
SCL0
SDA0
MISO
MOSI
CS
MRST
TRST
SIN
SOUT
PWM1
PWM2
PWM5
PWM6
PWM3
PWM4
Rev. 0 | Page 54 of 96
Configuration (See GPxCON Table 74)
10
JTAG disabled
JTAG disabled ADC
SYNC (PWM)
TRIP (PWM)
ADC
SCL1
SDA1
ECLK/XCLK
CONVST
BUSY
11
PLAO[13]
PLAO[12]
PLAI[11]
PLAI[10]
PLAI[2]
PLAI[3]
PLAO[15]
PLAO[14]
PLAI[8]
PLAO[5]
PLAO[4]
PLAI[13]
PLAI[12]
PLAI[1]
PLAI[14]
PLAO[7]
PLAO[6]
PLAI[15]
PLAI[0]
PLAO[0]
PLAO[1]
PLAO[2]
PLAO[3]
PLAO[8]
PLAO[9]
PLAO[10]
PLAO[11]
PLAI[5]
PLAI[4]
PLAI[7]
PLAI[6]
PLAI[9]