0X4200-0X4206; 8-Bit Timer (With Fine Mode - Epson S1C17001 Technical Manual

APPENDIX A I/O REGISTER LIST
0x4200–0x4206
Register name Address Bit
8-bit Timer 0x4200 D15–4 –
Input Clock (16 bits)
D3–0 DF[3:0]
Select Register
(T8F_CLK)
8-bit Timer 0x4202 D15–8 –
Reload Data (16 bits)
D7–0 TR[7:0]
Register
(T8F_TR)
8-bit Timer 0x4204 D15–8 –
Counter Data (16 bits)
D7–0 TC[7:0]
Register
(T8F_TC)
8-bit Timer 0x4206 D15–12 –
Control Register (16 bits)
D11–8 TFMD[3:0] Fine mode setup
(T8F_CTL)
D7–5 –
D4
D3–2 –
D1
D0
310
Name Function
reserved
Timer input clock select
(Prescaler output clock)
reserved
8-bit timer reload data
TR7 = MSB
TR0 = LSB
reserved
8-bit timer counter data
TC7 = MSB
TC0 = LSB
reserved
reserved
TRMD Count mode select
reserved
PRESER Timer reset
PRUN Timer run/stop control

8-bit Timer (with Fine Mode)

Setting
–
DF[3:0]
0xf
0xe PCLK-1/16384
0xd PCLK-1/8192
0xc PCLK-1/4096
0xb PCLK-1/2048
0xa PCLK-1/1024
0x9 PCLK-1/512
0x8 PCLK-1/256
0x7 PCLK-1/128
0x6 PCLK-1/64
0x5 PCLK-1/32
0x4 PCLK-1/16
0x3
PCLK-1/8
0x2 PCLK-1/4
0x1 PCLK-1/2
0x0 PCLK-1/1
–
0x0 to 0xff
–
0x0 to 0xff
–
0x0 to 0xf
–
1 One shot 0 Repeat
–
1 Reset 0 Ignored
1 Run 0 Stop
EPSON
Init. R/W Remarks
– – 0 when being read.
Clock 0x0 R/W
reserved
– – 0 when being read.
0x0 R/W
– – 0 when being read.
0x0 R
– – 0 when being read.
0x0 R/W Set a number of times
to insert delay into a
16-underflow period.
– – 0 when being read.
0 R/W
– – 0 when being read.
0 W
0 R/W
S1C17001 TECHNICAL MANUAL