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CHAPTER 3 CPU ARCHITECTURE
User’s Manual U15104EJ2V0UD
Table 3-4. Special Function Registers (2/3)
Address
Special Function Register (SFR) Name
Symbol
R/W
Bit Units for Manipulation After Reset
1 Bit
8 Bits 16 Bits
FF6EH
Serial I/O shift register 30
SIO30
R/W
—
—
Undefined
FF6FH
Serial operating mode register 30
CSIM30
—
00H
FF70H
8-bit compare register 52
CR52
W
—
—
Undefined
FF71H
8-bit compare register 53
CR53
—
—
FF72H
8-bit timer counter 52
TM523 TM52
R
—
00H
FF73H
8-bit timer counter 53
TM53
—
FF74H
Timer clock select register 52
TCL52
R/W
—
—
FF75H
8-bit timer mode control register 52
TMC52
—
FF77H
Timer clock select register 53
TLC53
—
—
FF78H
8-bit timer mode control register 53
TMC53
—
FF80H
8-bit compare register 50
CR50
—
—
Undefined
FF81H
8-bit compare register 51
CR51
—
—
FF82H
8-bit timer counter 50
TM501 TM50
R
—
00H
FF83H
8-bit timer counter 51
TM51
—
FF84H
Timer clock select register 50
TCL50
R/W
—
—
FF85H
8-bit timer mode control register 50
TMC50
—
FF87H
Timer clock select register 51
TCL51
—
—
FF88H
8-bit timer mode control register 51
TMC51
—
FFA0H
PLL mode select register
PLLMD
—
FFA1H
PLL reference mode register
PLLRF
—
0FH
FFA2H
PLL unlock F/F judge register
PLLUL
R&Reset
—
Retained
Note 1
FFA3H
PLL data transfer register
PLLNS
W
—
00H
FFA6H
PLL data registers
PLL data register L
PLLR
PLLRL
R/W
Undefined
FFA7H
PLL data register H
PLLRH
FFA8H
PLL data register 0
PLLR0
—
FFA9H
IF counter mode select register
IFCMD
—
00H
FFAAH
DTS system clock select register
DTSCK
—
00H
Note 2
FFABH
IF counter gate judge register
IFCJG
R
—
00H
FFACH
IF counter control register
IFCCR
W
—
FFAEH
IF counter register
IFCR
IFCRL
R
—
—
FFAFH
IFCRH
—
—
Notes 1. Undefined by power-on clear reset only.
2. Though the initial value of the DTS system clock select register (DTSCK) is 00H, be sure to set this register
to 01H before using it.
Caution Do not access addresses to which no SFR is assigned.
Содержание mPD178053
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