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13 PROGRAMMABLE TIMER
Address Bit
Name
00FF24 D7
PRPRT5
Programmable timer 5 clock control
D6
PST52
Programmable timer 5 division ratio
D5
PST51
D4
PST50
D3
PRPRT4
Programmable timer 4 clock control
D2
PST42
Programmable timer 4 division ratio
D1
PST41
D0
PST40
00FF25 D7
PRPRT7
Programmable timer 7 clock control
D6
PST72
Programmable timer 7 division ratio
D5
PST71
D4
PST70
D3
PRPRT6
Programmable timer 6 clock control
D2
PST62
Programmable timer 6 division ratio
D1
PST61
D0
PST60
00FF27 D7
–
–
D6
–
–
D5
–
–
D4
–
–
D3
PRTF7
Programmable timer 7 source clock selection
D2
PRTF6
Programmable timer 6 source clock selection
D1
PRTF5
Programmable timer 5 source clock selection
D0
PRTF4
Programmable timer 4 source clock selection
00FF30
D7
MODE16_A
PTM0–1 8/16-bit mode selection
D6
PTNREN_A
External clock 0 noise rejector selection
D5
–
–
D4
–
R/W register
D3
PTOUT0
PTM0 clock output control
D2
PTRUN0
PTM0 Run/Stop control
D1
PSET0
PTM0 preset
D0
CKSEL0
PTM0 input clock selection
106
Table 13.9.1(b) Programmable timer control bits
Function
PST52
PST51
PST50
(OSC3)
1
1
1
f
/ 4096
OSC3
1
1
0
f
/ 1024
OSC3
1
0
1
f
/ 256
OSC3
1
0
0
f
/ 64
OSC3
0
1
1
f
/ 32
OSC3
0
1
0
f
/ 8
OSC3
0
0
1
f
/ 2
OSC3
0
0
0
f
/ 1
OSC3
PST42
PST41
PST40
(OSC3)
1
1
1
f
/ 4096
OSC3
1
1
0
f
/ 1024
OSC3
1
0
1
f
/ 256
OSC3
1
0
0
f
/ 64
OSC3
0
1
1
f
/ 32
OSC3
0
1
0
f
/ 8
OSC3
0
0
1
f
/ 2
OSC3
0
0
0
f
/ 1
OSC3
PST72
PST71
PST70
(OSC3)
1
1
1
f
/ 4096
OSC3
1
1
0
f
/ 1024
OSC3
1
0
1
f
/ 256
OSC3
1
0
0
f
/ 64
OSC3
0
1
1
f
/ 32
OSC3
0
1
0
f
/ 8
OSC3
0
0
1
f
/ 2
OSC3
0
0
0
f
/ 1
OSC3
PST62
PST61
PST60
(OSC3)
1
1
1
f
/ 4096
OSC3
1
1
0
f
/ 1024
OSC3
1
0
1
f
/ 256
OSC3
1
0
0
f
/ 64
OSC3
0
1
1
f
/ 32
OSC3
0
1
0
f
/ 8
OSC3
0
0
1
f
/ 2
OSC3
0
0
0
f
/ 1
OSC3
1
On
(OSC1)
f
/ 128
OSC1
f
/ 64
OSC1
f
/ 32
OSC1
f
/ 16
OSC1
f
/ 8
OSC1
f
/ 4
OSC1
f
/ 2
OSC1
f
/ 1
OSC1
On
(OSC1)
f
/ 128
OSC1
f
/ 64
OSC1
f
/ 32
OSC1
f
/ 16
OSC1
f
/ 8
OSC1
f
/ 4
OSC1
f
/ 2
OSC1
f
/ 1
OSC1
On
(OSC1)
f
/ 128
OSC1
f
/ 64
OSC1
f
/ 32
OSC1
f
/ 16
OSC1
f
/ 8
OSC1
f
/ 4
OSC1
f
/ 2
OSC1
f
/ 1
OSC1
On
(OSC1)
f
/ 128
OSC1
f
/ 64
OSC1
f
/ 32
OSC1
f
/ 16
OSC1
f
/ 8
OSC1
f
/ 4
OSC1
f
/ 2
OSC1
f
/ 1
OSC1
–
–
–
–
f
OSC1
f
OSC1
f
OSC1
f
OSC1
-
bit x 1
16
8
Enable
Disable
–
1
On
Run
Preset
No operation
External clock
Internal clock
EPSON
0
SR R/W
Comment
0
R/W
Off
0
R/W
0
R/W
0
R/W
0
R/W
Off
0
R/W
0
R/W
0
R/W
0
R/W
Off
0
R/W
0
R/W
0
R/W
0
R/W
Off
0
R/W
0
R/W
0
R/W
–
R
–
Constantly "0" when
–
R
–
being read
–
R
–
–
R
–
0
R/W
f
OSC3
0
R/W
f
OSC3
0
R/W
f
OSC3
0
R/W
f
OSC3
-
bit x 2
0
R/W
0
R/W
0
R
–
"0" when being read
0
R/W
0
Reserved register
0
R/W
Off
0
R/W
Stop
0
W
"0" when being read
0
R/W
S1C88655 TECHNICAL MANUAL
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