Port1 control register – Samsung S3F401F User Manual

Page 161

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I/O PORTS

S3F401F_UM_REV1.00

8-12

PORT1 Control Register

PCON1L (0x00C)

Access: Read/Write

31 30 29 28 27 26 25 24

P1.15 [31:30]

P1.14[29:28]

P1.13[27:26]

P1.12[25:24]

R/W-0 R/W-0 R/W-0

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0

23 22 21 20 19 18 17 16

P1.11[23:22]

P1.10[21:20]

P1.9[19:18]

P1.8[17:16]

R/W-0 R/W-0 R/W-0

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0

15 14 13 12 11 10 9 8

P1.7[15:14]

P1.6[13:12]

P1.5[11:10]

P1.4[9:8]

R/W-0 R/W-0 R/W-0

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0

7 6 5 4 3 2 1 0

P1.3[7:6]

P1.2[5:4]

P1.1[3:2]

P1.0[1:0]

R/W-0 R/W-0 R/W-0

R/W-0

R/W-0 R/W-0 R/W-0 R/W-0

W: Write

R: Read

-0: 0 After reset

-1: 1 After reset

-U: Undefined after reset

P1.0 PORT

1.0

00 = Input Mode

General IO port

Schmitt-trigger

01 = Output Mode

General IO port

10 = UARTRX0

UART0 Input port

11 = INT0

Interrupt Signal input port

P1.1 PORT

1.1

00 = Input Mode

General IO port

Schmitt-trigger

01 = Output Mode

General IO port

10 = UARTTX0

UART0 output port

11 = INT1

Interrupt Signal input port

P1.2 PORT

1.2

00 = Input Mode

General IO port

Schmitt-trigger

01 = Output Mode

General IO port

10 = UARTRX1

UART1 input port

11 = INT2

Interrupt Signal input port

P1.3 PORT

1.3

00 = Input Mode

General IO port

Schmitt-trigger

01 = Output Mode

General IO port

10 = UARTTX1

UART1 output port

11 = INT3

Interrupt Signal input port

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