0X4200: 8-Bit Timer Input Clock Select Register (T8F_Clk) - Epson S1C17704 Technical Manual

Cmos 16-bit single chip microcomputer
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0x4200: 8-bit Timer Input Clock Select Register (T8F_CLK)

Register name Address
Bit
8-bit Timer
0x4200
D15–4 –
Input Clock
(16 bits)
D3–0 DF[3:0]
Select Register
(T8F_CLK)
D[15:4]
Reserved
D[3:0]
DF[3:0]: Timer Input Clock Select Bits
These bits select the count clock of the 8-bit timer from 15 prescaler output clocks.
DF[3:0]
0xf
0xe
0xd
0xc
0xb
0xa
0x9
0x8
Note: When setting the count clock, make sure the 8-bit timer counter is stopped.
S1C17704 TECHNICAL MANUAL
Name
Function
reserved
Timer input clock select
(Prescaler output clock)
Table 12.10.2 Selecting the Count Clock
Prescaler output clock
Reserved
PCLK•1/16384
PCLK•1/8192
PCLK•1/4096
PCLK•1/2048
PCLK•1/1024
PCLK•1/512
PCLK•1/256
EPSON
Setting
Init. R/W
DF[3:0]
Clock
0x0 R/W
0xf
reserved
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
DF[3:0]
Prescaler output clock
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
12 8-BIT TIMER (T8F)
Remarks
0 when being read.
(Default: 0x0)
12-11

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