ADUC7122 Datasheet, PDF (13/92 Pages) Analog Devices – Precision Analog Microcontroller, 12-Bit Analog I/O, ARM7TDMI® MCU

Preliminary Technical Data
ADuC7122
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
12
11
10
9
8
7
6
5
4
3
2
1
A1
corner
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
n.c.
A
n.c.
n.c.
AGND AGND n.c.
REG_PWR AGND n.c.
n.c.
P1.6
P1.7
n.c.
B
/RST P3.1 TDI/ P2.7 n.c.
n.c.
P1.2
n.c.
n.c.
P3.0
P0.2
P1.0
P2.6
C
P3.6 P0.0 TDO/
P1.3
P0.3
P1.1
P3.2
D
P3.7 P0.1 TMS
P0.4
P3.4
P3.3
E
DGND P2.0 TCK
P0.5
P3.5
DGND _F
LVDD P2.1 P0_7
P0.6
XTALO LVDD _G
IOVDD P2.2 P2.4
P1.4
XTALI IOVDD _H
IOGND P2.3 P2.5
P1.5
DAC2 IOGND _J
DAC11 DAC10 DAC9
ADC9
ADC10/ BUF_
AINCM VREF2
BUF_
VREF1
ADC0
ADC1 ADC4 DAC1 DAC0 _K
AVDD DAC7 DAC8 ADC8 Vref_2.5 PADC1P PADC0P Vref_1.2 ADC3 DAC5 DAC3 AVDD _L
AGND DAC6 ADC6 AIN7 PADC1N AVDD
AGND PADC0N ADC2 ADC5 DAC4 AGND _M
Table 9. Pin Function Descriptions
Pin No. Mnemonic
C12
RST
D11
P0.0/SCL1/PLAI[5]
E11
P0.1/SDA1/PLAI[4]
C3
P0.2/SPICLK/PLAO[13]
D3
P0.3/SPIMISO/PLAO[12]/SYNC
E3
P0.4/SPIMOSI/PLAI[11]/TRIP
Figure 7. Pin Configuration
Type¹
I
I/O
I/O
I/O
I/O
I/O
Description
Reset Input (Active Low).
General-Purpose Input and Output Port 0.0 (P0.0).
I²C Interface SCLOCK for I2C0 (SCL1).
Input to PLA Element 5 (PLAI[5]).
General-Purpose Input and Output Port 0.1 (P0.1).
I²C Interface SDATA for I2C0 (SDA1).
Input to PLA Element 4 (PLAI[4]).
General-Purpose Input and Output Port 0.2 (P0.2).
SPI Clock (SPICLK).
Output of PLA Element 13 (PLAO[13]).
General-Purpose Input and Output Port 0.3 (P0.3).
SPI Master Input, Slave Output (SPIMISO).
Output of PLA Element 12 (PLAO[12]).
TBD (SYNC).
General-Purpose Input and Output Port 0.4 (P0.4).
SPI Master Out Slave Input (SPIMOSI).
Input to PLA Element 11 (PLAI[11]).
TBD (TRIP).
Rev. PrA | Page 13 of 92