I/O PORTS

S3C84E5/C84E9/P84E9

 

 

MSB

Port 0 Control Register, Low Byte (P0CONL) E7H, Set1, Bank0, R/W, Reset value="0FH"

.7

.6

.5

.4

.3

.2

.1

.0

 

 

 

 

 

 

 

 

LSB

[.7-.6] P0.3/T1CK1 Configuration Bits

00 = Input mode with pull-up; T1CK1 input

01 = Input mode; T1CK1 input

1X = Push-pull output mode

[.5-.4] P0.2/T1CAP1 Configuration Bits

00 = Input mode with pull-up; T1CAP1 input

01 = Input mode; T1CAP1 input

1X = Push-pull output mode

[.3-.2] P0.1/XTout Configuration Bits

00 = Input mode with pull-up

01 = Input mode

10 = Push-pull output mode

1 1 = Alternative function mode: Sub oscillator output (XTout)

[.1-.0] P0.0/XTin Configuration Bits

00 = Input mode with pull-up

01 = Input mode

10 = Push-pull output mode

1 1 = Alternative function mode: Sub oscillator input (XTin)

Figure 9-2. Port 0 Low Byte Control Register (P0CONL)

9-4

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Image 228
Samsung S3C84E5 user manual P0.3/T1CK1 Configuration Bits, P0.2/T1CAP1 Configuration Bits, P0.1/XTout Configuration Bits