
III PERIPHERAL BLOCK: 8-BIT PROGRAMMABLE TIMERS
S1C33T01 FUNCTION PART
EPSON
B-III-3-13
Table 3.6
Control Bits of 8-Bit Programmable Timer (continue)
Name
Address
Register name
Bit
Function
Setting
Init.
R/W
Remarks
–
DESTX3
DESRX3
DESTX2
DESRX2
DE8TU5
DE8TU4
D7–6
D5
D4
D3
D2
D1
D0
reserved
SIF Ch.3 transmit buffer empty
SIF Ch.3 receive buffer full
SIF Ch.2 transmit buffer empty
SIF Ch.2 receive buffer full
8-bit timer 5 underflow
8-bit timer 4 underflow
–
0
–
R/W
0 when being read.
004029C
(B)
1 IDMA
enabled
0 IDMA
disabled
8-bit timer 4-5
serial I/F Ch.2/3
IDMA enable
register
–
CFP16
CFP15
CFP14
CFP13
CFP12
CFP11
CFP10
D7
D6
D5
D4
D3
D2
D1
D0
reserved
P16 function selection
P15 function selection
P14 function selection
P13 function selection
P12 function selection
P11 function selection
P10 function selection
–
0
–
R/W
0 when being read.
Extended functions
(0x402DF)
00402D4
(B)
1 EXCL5
#DMAEND1
0 P16
1 EXCL4
#DMAEND0
0 P15
1 EXCL3
T8UF3
0 P13
1 EXCL2
T8UF2
0 P12
1 EXCL1
T8UF1
0 P11
1 EXCL0
T8UF0
0 P10
–
P1 function
select register
1 FOSC1
0 P14
–
IOC16
IOC15
IOC14
IOC13
IOC12
IOC11
IOC10
D7
D6
D5
D4
D3
D2
D1
D0
reserved
P16 I/O control
P15 I/O control
P14 I/O control
P13 I/O control
P12 I/O control
P11 I/O control
P10 I/O control
–
0
–
R/W
0 when being read.
00402D6
(B)
1 Output
0 Input
–
P1 I/O control
register
CFEX7
CFEX6
CFEX5
CFEX4
CFEX3
CFEX2
CFEX1
CFEX0
D7
D6
D5
D4
D3
D2
D1
D0
P07 port extended function
P06 port extended function
P05 port extended function
P04 port extended function
P31 port extended function
P21 port extended function
P10, P11, P13 port extended
function
P12, P14 port extended function
0
1
R/W
00402DF
(B)
Port function
extension
register
1 #DMAEND3
0 P07, etc.
1 #DMAACK3
0 P06, etc.
1 #DMAEND2
0 P05, etc.
1 #DMAACK2
0 P04, etc.
1 #GARD
0 P31, etc.
1 #GAAS
0 P21, etc.
1 DST0
DST1
DPC0
0 P10, etc.
P11, etc.
P13, etc.
1 DST2
DCLK
0 P12, etc.
P14, etc.
–
CFP51
CFP50
D7–2
D1
D0
reserved
P51 function selection
P50 function selection
–
0
–
R/W
0 when being read.
0040303
(B)
1 T8UF5
0 P51
1 T8UF4
0 P50
P5 function
select register
–
CFP13–CFP10: P1[3:0] pin function selection (D[3:0]) / P1 function select register (0x402D4)
CFP51–CFP50: P5[1:0] pin function selection (D[1:0]) / P5 function select register (0x40303)
Selects the pin that is used to output a timer underflow signal to external devices.
Write "1": Underflow signal output pin
Write "0": I/O port pin
Read: Valid
Select the pins to be used as timer underflow signal external outputs from P10 to P13 and P50 to P51 by writing "1"
values to CFP10 to CFP13 and CFP50 to CFP51. P10 to P13 correspond to timers 0 to 3, and P50 and P51
correspond to timers 4 and 5.
If "0" is written to CFP1x, the pin is set for an I/O port.
At cold start, CFP1x is set to "0" (I/O port). At hot start, the bit retains its state from prior to the initial reset.