24 I/O PORTS (GPIO)
24-34
Seiko Epson Corporation
S1C33L26 TECHNICAL MANUAL
P7[3:0] Port Function Select Register (PMUX_P7_03)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
P7[3:0] Port
Function Select
Register
(PMUX_P7_03)
0x30080e
(8 bits)
D7–6 CFP73[1:0] P73 port function select
CFP73[1:0]
Function
0x0 R/W Write-protected
0x3
0x2
0x1
0x0
reserved
reserved
AIN3
P73
D5–4 CFP72[1:0] P72 port function select
CFP72[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
PWM_EXCL
AIN2
P72
D3–2 CFP71[1:0] P71 port function select
CFP71[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
T16A_EXCL_1
AIN1
P71
D1–0 CFP70[1:0] P70 port function select
CFP70[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
T16A_EXCL_0
AIN0
P70
The GPIO pins are shared with the peripheral module pins. This register is used to select how the pins are used.
D[7:6]
CFP73[1:0]: P73 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): Reserved
0x1 (R/W): AIN3 (ADC10)
0x0 (R/W): P73 (GPIO) (default)
D[5:4]
CFP72[1:0]: P72 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): PWM_EXCL (T16P)
0x1 (R/W): AIN2 (ADC10)
0x0 (R/W): P72 (GPIO) (default)
D[3:2]
CFP71[1:0]: P71 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): T16A_EXCL_1 (T16A5 Ch.1)
0x1 (R/W): AIN1 (ADC10)
0x0 (R/W): P71 (GPIO) (default)
D[1:0]
CFP70[1:0]: P70 Port Function Select Bits
0x3 (R/W): Reserved
0x2 (R/W): T16A_EXCL_0 (T16A5 Ch.0)
0x1 (R/W): AIN0 (ADC10)
0x0 (R/W): P70 (GPIO) (default)
P7[5:4] Port Function Select Register (PMUX_P7_45)
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
P7[5:4] Port
Function Select
Register
(PMUX_P7_45)
0x30080f
(8 bits)
D7–4 –
reserved
–
–
–
0 when being read.
D3–2 CFP75[1:0] P75 port function select
CFP75[1:0]
Function
0x0 R/W Write-protected
0x3
0x2
0x1
0x0
#ADTRIG
#WAIT
AIN5
P75
D1–0 CFP74[1:0] P74 port function select
CFP74[1:0]
Function
0x0 R/W
0x3
0x2
0x1
0x0
reserved
reserved
AIN4
P74
The GPIO pins are shared with the peripheral module pins. This register is used to select how the pins are used.
D[7:4]
Reserved