APPENDIX A LIST OF I/O REGISTERS
S1C33L26 TECHNICAL MANUAL
Seiko Epson Corporation
AP-A-13
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
I
2
S Interrupt
Level Register
(ITC_I2S_LV)
0x300229
(8 bits)
D7–3 –
reserved
–
–
–
0 when being read.
D2–0 INT_LV[2:0] I
2
S interrupt level
1 to 7
0x0 R/W
GE Complete
Interrupt Level
Register
(ITC_GECOM_LV)
0x30022a
(8 bits)
D7–3 –
reserved
–
–
–
0 when being read.
D2–0 INT_LV[2:0] GE complete interrupt level
1 to 7
0x0 R/W
GE Error
Interrupt Level
Register
(ITC_GEERR_LV)
0x30022b
(8 bits)
D7–3 –
reserved
–
–
–
0 when being read.
D2–0 INT_LV[2:0] GE error interrupt level
1 to 7
0x0 R/W
USB Interrupt
Level Register
(ITC_USB_LV)
0x30022c
(8 bits)
D7–3 –
reserved
–
–
–
0 when being read.
D2–0 INT_LV[2:0] USB interrupt level
1 to 7
0x0 R/W
0x300300–0x30083f
GPIO & Port MUX
Register name Address
Bit
Name
Function
Setting
Init. R/W
Remarks
P0 Port Data
Register
(GPIO_P0_DAT)
0x300300
(8 bits)
D7–0 P0[7:0]D
P0[7:0] I/O port data
1 1 (High)
0 0 (Low)
Ext. R/W Ext.: Depends on
the external pin
status.
P0 Port I/O
Control Register
(GPIO_P0_IOC)
0x300301
(8 bits)
D7–0 IOC0[7:0]
P0[7:0] I/O control
1 Output
0 Input
0x0 R/W
P1 Port Data
Register
(GPIO_P1_DAT)
0x300302
(8 bits)
D7–0 P1[7:0]D
P1[7:0] I/O port data
1 1 (High)
0 0 (Low)
Ext. R/W Ext.: Depends on
the external pin
status.
P1 Port I/O
Control Register
(GPIO_P1_IOC)
0x300303
(8 bits)
D7–0 IOC1[7:0]
P1[7:0] I/O control
1 Output
0 Input
0x0 R/W
P2 Port Data
Register
(GPIO_P2_DAT)
0x300304
(8 bits)
D7–2 –
reserved
–
–
–
0 when being read.
D1–0 P2[1:0]D
P2[1:0] I/O port data
1 1 (High)
0 0 (Low)
Ext. R/W Ext.: Depends on
the external pin
status.
P2 Port I/O
Control Register
(GPIO_P2_IOC)
0x300305
(8 bits)
D7–2 –
reserved
–
–
–
0 when being read.
D1–0 IOC2[1:0]
P2[1:0] I/O control
1 Output
0 Input
0x0 R/W
P3 Port Data
Register
(GPIO_P3_DAT)
0x300306
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–0 P3[6:0]D
P3[6:0] I/O port data
1 1 (High)
0 0 (Low)
Ext. R/W Ext.: Depends on
the external pin
status.
P3 Port I/O
Control Register
(GPIO_P3_IOC)
0x300307
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–0 IOC3[6:0]
P3[6:0] I/O control
1 Output
0 Input
0x0 R/W
P4 Port Data
Register
(GPIO_P4_DAT)
0x300308
(8 bits)
D7–3 –
reserved
–
–
–
0 when being read.
D2–0 P4[2:0]D
P4[2:0] I/O port data
1 1 (High)
0 0 (Low)
Ext. R/W Ext.: Depends on
the external pin
status.
P4 Port I/O
Control Register
(GPIO_P4_IOC)
0x300309
(8 bits)
D7–3 –
reserved
–
–
–
0 when being read.
D2–0 IOC4[2:0]
P4[2:0] I/O control
1 Output
0 Input
0x0 R/W
P5 Port Data
Register
(GPIO_P5_DAT)
0x30030a
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–0 P5[6:0]D
P5[6:0] I/O port data
1 1 (High)
0 0 (Low)
Ext. R/W Ext.: Depends on
the external pin
status.
P5 Port I/O
Control Register
(GPIO_P5_IOC)
0x30030b
(8 bits)
D7
–
reserved
–
–
–
0 when being read.
D6–0 IOC5[6:0]
P5[6:0] I/O control
1 Output
0 Input
0x0 R/W
P6 Port Data
Register
(GPIO_P6_DAT)
0x30030c
(8 bits)
D7–1 –
reserved
–
–
–
0 when being read.
D0
P60D
P60 I/O port data
1 1 (High)
0 0 (Low)
Ext. R/W Ext.: Depends on
the external pin
status.
P6 Port I/O
Control Register
(GPIO_P6_IOC)
0x30030d
(8 bits)
D7–1 –
reserved
–
–
–
0 when being read.
D0
IOC60
P60 I/O control
1 Output
0 Input
0
R/W
P7 Port Data
Register
(GPIO_P7_DAT)
0x30030e
(8 bits)
D7–6 –
reserved
–
–
–
0 when being read.
D5–0 P7[5:0]D
P7[5:0] input port data
1 1 (High)
0 0 (Low)
Ext.
R Ext.: Depends on
the external pin
status.
P8 Port Data
Register
(GPIO_P8_DAT)
0x300310
(8 bits)
D7–4 –
reserved
–
–
–
0 when being read.
D3–0 P8[3:0]D
P8[3:0] I/O port data
1 1 (High)
0 0 (Low)
Ext. R/W Ext.: Depends on
the external pin
status.