
CHAPTER 3 CPU FUNCTIONS
User’s Manual U12768EJ4V1UD
84
(4/5)
Bit Units for Manipulation
After Reset
Address
Function Register Name
Symbol
R/W
1 Bit
8 Bits
16 Bits
FFFFF21EH
Prescaler mode register 11
PRM11
R/W
√
00H
FFFFF240H
8-bit counter 2
TM2
R
√
00H
FFFFF242H
8-bit compare register 2
CR20
R/W
√
00H
FFFFF244H
Timer clock select register 2
TCL2
R/W
√
00H
FFFFF246H
8-bit timer mode control register 2
TMC2
R/W
√
04H
Note
FFFFF24AH
16-bit counter 23 (only when connected in
cascade)
TM23
R
√
0000H
FFFFF24CH
16-bit compare register 23 (only when connected
in cascade)
CR23
R/W
√
0000H
FFFFF24EH
Timer clock select register 21
TCL21
R/W
√
00H
FFFFF250H
8-bit counter 3
TM3
R
√
00H
FFFFF252H
8-bit compare register 3
CR30
R/W
√
00H
FFFFF254H
Timer clock select register 3
TCL3
R/W
√
00H
FFFFF256H
8-bit timer mode control register 3
TMC3
R/W
√
04H
Note
FFFFF25EH
Timer clock select register 31
TCL31
R/W
√
00H
FFFFF260H
8-bit counter 4
TM4
R
√
00H
FFFFF262H
8-bit compare register 4
CR40
R/W
√
00H
FFFFF264H
Timer clock select register 4
TCL4
R/W
√
00H
FFFFF266H
8-bit timer mode control register 4
TMC4
R/W
√
04H
Note
FFFFF26AH
16-bit counter 45 (only when connected in
cascade)
TM45
R
√
0000H
FFFFF26CH
16-bit compare register 45 (only when connected
in cascade)
CR45
R/W
√
0000H
FFFFF26EH
Timer clock select register 41
TCL41
R/W
√
00H
FFFFF270H
8-bit counter 5
TM5
R
√
00H
FFFFF272H
8-bit compare register 5
CR50
R/W
√
00H
FFFFF274H
Timer clock select register 5
TCL5
R/W
√
00H
FFFFF276H
8-bit timer mode control register 5
TMC5
R/W
√
04H
Note
FFFFF27EH
Timer clock select register 51
TCL51
R/W
√
00H
FFFFF2A0H
Serial I/O shift register 0
SIO0
R/W
√
00H
FFFFF2A2H
Serial operation mode register 0
CSIM0
R/W
√
00H
FFFFF2A4H
Serial clock select register 0
CSIS0
R/W
√
00H
FFFFF2B0H
Serial I/O shift register 1
SIO1
R/W
√
00H
FFFFF2B2H
Serial operation mode register 1
CSIM1
R/W
√
00H
FFFFF2B4H
Serial clock select register 1
CSIS1
R/W
√
00H
FFFFF2C0H
Serial I/O shift register 2
SIO2
R/W
√
00H
FFFFF2C2H
Serial operation mode register 2
CSIM2
R/W
√
00H
Note
Although the hardware status is initialized to 04H, 00H will be read out in a read operation.