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aPPenDiX a liST OF i/O ReGiSTeRS
aP-a-4
Seiko epson Corporation
S1C17153 TeChniCal Manual
(Rev. 1.0)
0x4240–0x4248
8-bit Timer Ch.0
Register name address
Bit
name
Function
Setting
init. R/W
Remarks
T8 Ch.0 Count
Clock Select
Register
(T8_ClK0)
0x4240
(16 bits)
D15–4
–
reserved
–
–
–
0 when being read.
D3–0
DF[3:0]
Count clock division ratio select
DF[3:0]
Division ratio
0x0 R/W Source clock = PCLK
0xf
0xe
0xd
0xc
0xb
0xa
0x9
0x8
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
reserved
1/16384
1/8192
1/4096
1/2048
1/1024
1/512
1/256
1/128
1/64
1/32
1/16
1/8
1/4
1/2
1/1
T8 Ch.0 Reload
Data Register
(T8_TR0)
0x4242
(16 bits)
D15–8
–
reserved
–
–
–
0 when being read.
D7–0
TR[7:0]
Reload data
TR7 = MSB
TR0 = LSB
0x0 to 0xff
0x0 R/W
T8 Ch.0
Counter Data
Register
(T8_TC0)
0x4244
(16 bits)
D15–8
–
reserved
–
–
–
0 when being read.
D7–0
TC[7:0]
Counter data
TC7 = MSB
TC0 = LSB
0x0 to 0xff
0xff
R
T8 Ch.0
Control Register
(T8_CTl0)
0x4246
(16 bits)
D15–5
–
reserved
–
–
–
Do not write 1.
D4
TRMD
Count mode select
1 One shot
0 Repeat
0
R/W
D3–2
–
reserved
–
–
–
0 when being read.
D1
PReSeR
Timer reset
1 Reset
0 Ignored
0
W
D0
PRun
Timer run/stop control
1 Run
0 Stop
0
R/W
T8 Ch.0
interrupt
Control Register
(T8_inT0)
0x4248
(16 bits)
D15–9
–
reserved
–
–
–
0 when being read.
D8
T8ie
T8 interrupt enable
1 Enable
0 Disable
0
R/W
D7–1
–
reserved
–
–
–
0 when being read.
D0
T8iF
T8 interrupt flag
1 Cause of
interrupt
occurred
0 Cause of
interrupt not
occurred
0
R/W Reset by writing 1.
0x4306–0x4314
interrupt Controller
Register name address
Bit
name
Function
Setting
init. R/W
Remarks
interrupt level
Setup Register 0
(iTC_lV0)
0x4306
(16 bits)
D15–3
–
reserved
–
–
–
0 when being read.
D2–0
ilV0[2:0]
P0 interrupt level
0 to 7
0x0 R/W
interrupt level
Setup Register 1
(iTC_lV1)
0x4308
(16 bits)
D15–11
–
reserved
–
–
–
0 when being read.
D10–8
ilV3[2:0]
CT interrupt level
0 to 7
0x0 R/W
D7–0
–
reserved
–
–
–
0 when being read.
interrupt level
Setup Register 2
(iTC_lV2)
0x430a
(16 bits)
D15–3
–
reserved
–
–
–
0 when being read.
D2–0
ilV4[2:0]
RTC interrupt level
0 to 7
0x0 R/W
interrupt level
Setup Register 3
(iTC_lV3)
0x430c
(16 bits)
D15–11
–
reserved
–
–
–
0 when being read.
D10–8
ilV7[2:0]
T16A2 Ch.0 interrupt level
0 to 7
0x0 R/W
D7–3
–
reserved
–
–
–
0 when being read.
D2–0
ilV6[2:0]
LCD interrupt level
0 to 7
0x0 R/W
interrupt level
Setup Register 5
(iTC_lV5)
0x4310
(16 bits)
D15–3
–
reserved
–
–
–
0 when being read.
D2–0
ilV10[2:0]
T8 Ch.0 interrupt level
0 to 7
0x0 R/W
interrupt level
Setup Register 6
(iTC_lV6)
0x4312
(16 bits)
D15–3
–
reserved
–
–
–
0 when being read.
D2–0
ilV12[2:0]
UART Ch.0 interrupt level
0 to 7
0x0 R/W
interrupt level
Setup Register 7
(iTC_lV7)
0x4314
(16 bits)
D15–3
–
reserved
–
–
–
0 when being read.
D2–0
ilV14[2:0]
SPI Ch.0 interrupt level
0 to 7
0x0 R/W
0x4320–0x4326
SPi Ch.0
Register name address
Bit
name
Function
Setting
init. R/W
Remarks
SPi Ch.0
Status Register
(SPi_ST0)
0x4320
(16 bits)
D15–3
–
reserved
–
–
–
0 when being read.
D2
SPBSY
Transfer busy flag (master)
1 Busy
0 Idle
0
R
ss signal low flag (slave)
1 ss = L
0 ss = H
D1
SPRBF
Receive data buffer full flag
1 Full
0 Not full
0
R
D0
SPTBe
Transmit data buffer empty flag
1 Empty
0 Not empty
1
R