
S1C88409 TECHNICAL MANUAL
EPSON
115
CHAPTER 5: PERIPHERAL CIRCUITS AND OPERATION (16-bit Programmable Timer)
5.12.7 I/O memory of 16-bit programmable timer
Table 5.12.7.1 shows the 16-bit programmable timer control bits.
Table 5.12.7.1(a) 16-bit programmable timer control bits
Address
Function
R/W
Init
0
1
Comment
Name
Bit
00FF10
16-bit programmable timer 1 clock control
16-bit programmable timer 1 division ratio
16-bit programmable timer 0 clock control
16-bit programmable timer 0 division ratio
R/W
0
Off
On
PRPRT1
PST12
PST11
PST10
PRPRT0
PST02
PST01
PST00
D7
D6
D5
D4
D3
D2
D1
D0
PST12
1
0
PST11
1
0
1
0
PST10
1
0
1
0
1
0
1
0
(OSC3)
fOSC3 / 4096
fOSC3 / 1024
fOSC3 / 256
fOSC3 / 128
fOSC3 / 64
fOSC3 / 32
fOSC3 / 8
fOSC3 / 2
(OSC1)
fOSC1 / 128
fOSC1 / 64
fOSC1 / 32
fOSC1 / 16
fOSC1 / 8
fOSC1 / 4
fOSC1 / 2
fOSC1 / 1
PST02
1
0
PST01
1
0
1
0
PST00
1
0
1
0
1
0
1
0
(OSC3)
fOSC3 / 4096
fOSC3 / 1024
fOSC3 / 256
fOSC3 / 128
fOSC3 / 64
fOSC3 / 32
fOSC3 / 8
fOSC3 / 2
(OSC1)
fOSC1 / 128
fOSC1 / 64
fOSC1 / 32
fOSC1 / 16
fOSC1 / 8
fOSC1 / 4
fOSC1 / 2
fOSC1 / 1
00FF12
–
16-bit programmable timer 1 source clock selection
16-bit programmable timer 0 source clock selection
–
R/W
–
0
–
fOSC3
–
fOSC1
"0" when being read
–
PRTF1
PRTF0
D7
D6
D5
D4
D3
D2
D1
D0
00FF15
–
EXCL01 input clock ON/OFF control
EXCL00 input clock ON/OFF control
–
R/W
–
0
–
Off
–
On
"0" when being read
–
PK11ON
PK10ON
D7
D6
D5
D4
D3
D2
D1
D0
00FF20
K10–K13
interrupt priority register
K00–K07
interrupt priority register
16-bit programmable timer 1
interrupt priority register
16-bit programmable timer 0
interrupt priority register
R/W
0
PK11
PK10
PK01
PK00
PTM11
PTM10
PTM01
PTM00
D7
D6
D5
D4
D3
D2
D1
D0
PK11
PK01
PTM11
PTM01
1
0
PK10
PK00
PTM10
PTM00
1
0
1
0
Priority
level
Level 3
Level 2
Level 1
Level 0
00FF24
8-bit programmable timer
underflow interrupt enable register
16-bit programmable timer 1
compare match interrupt enable register
16-bit programmable timer 1
underflow interrupt enable register
16-bit programmable timer 0
compare match interrupt enable register
16-bit programmable timer 0
underflow interrupt enable register
Serial interface
transmit completion interrupt enable register
Serial interface
receive completion interrupt enable register
Serial interface
receive error interrupt enable register
R/W
0
Interrupt is
disabled
Interrupt is
enabled
ETU2
ETC1
ETU1
ETC0
ETU0
ESTX
ESRX
ESERR
D7
D6
D5
D4
D3
D2
D1
D0