P89LPC915 Datasheet, PDF (22/72 Pages) NXP Semiconductors – 8-bit microcontrollers with accelerated two-clock 80C51 core 2 kB 3 V Flash with 8-bit A/D converter

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Table 8: P89LPC916 Special function registers…continued
* indicates SFRs that are bit addressable.
Name
Description
SFR Bit functions and addresses
addr. _MSB
LSB
Reset value
Hex Binary
FMCON Program Flash Control
E4H BUSY
-
-
-
HVA
HVE
SV
OI 70
01110000
(Read)
Program Flash Control (Write)
FMCMD. FMCMD. FMCMD. FMCMD. FMCMD. FMCMD. FMCMD. FMCMD.
7
6
5
4
3
2
1
0
FMDATA Program Flash data
E5H
00
00000000
I2ADR
I²C-bus slave address
register
DBH I2ADR.6 I2ADR.5 I2ADR.4 I2ADR.3 I2ADR.2 I2ADR.1 I2ADR.0 GC 00
00000000
Bit address DF
DE
DD
DC
DB
DA
D9
D8
I2CON* I²C-bus control register
D8H
-
I2EN
STA
STO
SI
AA
-
CRSEL 00
x00000x0
I2DAT
I²C-bus data register
DAH
I2SCLH
Serial clock generator/SCL
duty cycle register high
DDH
00
00000000
I2SCLL
Serial clock generator/SCL
duty cycle register low
DCH
00
00000000
I2STAT I²C-bus status register
D9H STA.4 STA.3 STA.2 STA.1 STA.0
0
0
0 F8
11111000
Bit address AF
AE
AD
AC
AB
AA
A9
A8
IEN0*
Interrupt enable 0
A8H EA EWDRT EBO ES/ESR ET1
-
ET0
EX0 00
00000000
Bit address EF
EE
ED
EC
EB
EA
E9
E8
IEN1*
Interrupt enable 1
E8H EAD
EST
-
-
ESPI
EC
EKBI
EI2C 00^[1] 00x00000
Bit address BF
BE
BD
BC
BB
BA
B9
B8
IP0*
Interrupt priority 0
B8H
-
PWDRT PBO PS/PSR PT1
-
PT0
PX0 00^[1] x0000000
IP0H
Interrupt priority 0 high
B7H
-
PWDRT PBOH PSH/ PT1H
-
PT0H PX0H 00^[1] x0000000
H
PSRH
Bit address FF
FE
FD
FC
FB
FA
F9
F8
IP1*
Interrupt priority 1
F8H PAD
PST
-
-
PSPI
PC
PKBI
PI2C 00^[1] 00x00000
IP1H
Interrupt priority 1 high
F7H PADH PSTH
-
-
PSPIH PCH PKBIH PI2CH 00^[1] 00x00000
KBCON Keypad control register
94H
-
-
-
-
-
-
PATN
KBIF 00^[1] xxxxxx00
_SEL
KBMASK Keypad interrupt mask
86H
register
00
00000000
KBPATN Keypad pattern register
93H
FF
11111111