Pin description

STA8088EXG

12/24

Doc ID 022725 Rev. 2

SQI pins are multiplexed with P0[13:10] and P0[19] (see Table 8).

2.8

Port 0 pins

Port 0 consists of a 32-bit bidirectional I/O port. It can be either used as general purpose

input or output port, or configured according to the associated alternate functions.

SQI_SCK

VDD_IOR4

O

SQI Flash clock

L11

SQI_CEn/

iopwrsel_r4

VDD_IOR4

O

SQI Flash chip enable / I/O ring 4 power selection

M11

Table 7.

SQI pins (continued)

Symbol

I/O Voltage

I/O

Functions

TFBGA169

Table 8.

Port 0 pins

Symbol

I/O voltage

I/O

Mode

Functions

TFBGA169

P0.0

VDD_IOR1

I/O

Default

GPIO.0: general purpose I/O

J13

I

A

PPS_IN: pulse per second input

O

B

PPS_Out: pulse per second output

O

C

SQI_CEn: SQI Flash chip enable

P0.1

VDD_IOR1

I/O

Default

GPIO.1: general purpose I/O

F12

O

A

RTC_CLKO: RTC clock out

P0.2

VDD_IOR1

I/O

Default

GPIO.2: general purpose I/O

E12

O

A

MMC2_CLK: MMC 2 clock line

P0.3

VDD_IOR1

I/O

Default

GPIO.3: general purpose I/O

H12

I/O

A

MMC2_CMD: MMC 2 command line

P0.4

VDD_IOR1

I/O

Default

GPIO.4: general purpose I/O

F13

I/O

A

MMC2_DATA3: MMC 2 data 3

P0.5

VDD_IOR1

I/O

Default

GPIO.5: general purpose I/O

E13

I/O

A

MMC2_DATA2: MMC 2 data 2

P0.6

VDD_IOR1

I/O

Default

GPIO.6: general purpose I/O

H13

I/O

A

MMC2_DATA1: MMC 2 data 1

P0.7

VDD_IOR1

I/O

Default

GPIO.7: general purpose I/O

G13

I/O

A

MMC2_DATA0: MMC 2 data 0

P0.8

VDD_IOR5

O

Default

B2

I/O

A

GPIO.8: general purpose I/O

I/O

B

I2C_SD: I2C serial data