UPD784915B Datasheet, PDF (24/86 Pages) NEC – 16-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784915B, 784916B
Table 3-2. Special Function Registers (1/4)
Address Special Function Register (SFR) Name
FF00H Port 0
FF04H Port 4
FF05H Port 5
FF06H Port 6
FF07H Port 7
FF08H Port 8
FF09H Port 9
FF0EH Port 0 buffer register L
FF0FH Port 0 buffer register H
FF10H Timer 0 compare register 0
FF11H Event counter compare register 0
FF12H Timer 0 compare register 1
FF13H Event counter compare register 1
FF14H Timer 0 compare register 2
FF15H Event counter compare register 2
FF16H Timer 1 compare register 0
FF17H Event counter compare register 3
FF18H Timer 1 compare register 1
FF1AH Timer 1 compare register 2
FF1CH Timer 1 compare register 3
FF1EH Timer 2 compare register 0
FF20H Port 0 mode register
FF24H Port 4 mode register
FF25H Port 5 mode register
FF26H Port 6 mode register
FF28H Port 8 mode register
FF29H Port 9 mode register
FF2EH Real-time output port 0 control register
FF30H Timer register 0
FF31H Event counter
FF32H Timer register 1
FF34H Free running counter (bits 0 to 15)
FF35H Free running counter (bits 16 to 21)
FF36H Timer register 2
FF38H Timer control register 0
FF39H Timer control register 1
FF3AH Timer control register 2
FF3BH Timer control register 3
Symbol
P0
P4
P5
P6
P7
P8
P9
P0L
P0H
CR00
ECC0
CR01
ECC1
CR02
ECC2
CR10
ECC3
CR11
CR12
CR13
CR20
PM0
PM4
PM5
PM6
PM8
PM9
RTPC
TM0
EC
TM1
FRCL
FRCH
TM2
TMC0
TMC1
TMC2
TMC3
Bit
R/W Length
R/W 8
8
8
8
R
8
R/W 8
8
8
8
16
W
8
R/W 16
W
8
R/W 16
W
8
R/W 16
W
8
R/W 16
R
16
R/W 16
16
W
8
8
8
8
8
8
R/W 8
R
16
R/W 8
R
16
16
8
16
R/W 8
8
8
8
Bit Units for
After
Manipulation
Releasing
1 bit 8 bits 16 bits Reset
√
√
-
Undefined
√
√
-
√
√
-
√
√
-
√
√
-
√
√
-
√
√
-
√
√
-
√
√
-
-
-
√ Cleared to 0
-
√
-
-
-
√
-
√
-
-
-
√
-
√
-
-
-
√
-
√
-
-
-
√
-
-
√
-
-
√
-
-
√
-
√
-
FFH
-
√
-
-
√
-
-
√
-
-
√
-
FDH
-
√
-
7FH
√
√
-
00H
-
-
√ Cleared to 0
-
√
-
-
-
√
-
-
√
0000H
-
√
-
00H
-
-
√ Cleared to 0
√
√
-
00H
√
√
-
√
√
-
√
√
-
00×00000
Remark Cleared to 0: Counter is initialized to 0 within 16 clocks after the reset signal has been deasserted (the
contents before initialization are undefined).
24