Single-Chip Microcontroller User Manual

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UM10310_1 © NXP B.V. 2008. All rights reserved. User manual Rev. 01 — 1 December 2008 12 of 139 NXP Semiconductors
UM10310
P89LPC9321 User manual
DEEDAT Data EEPROM
data register
F2H 00 0000 0000
DEEADR Data EEPROM
address
register
F3H 00 0000 0000
DIVM CPU clock
divide-by-M
control
95H 00 0000 0000
DPTR Data pointer
(2 bytes)
DPH Data pointer
high
83H 00 0000 0000
DPL Data pointer
low
82H 00 0000 0000
FMADRH Program flash
address high
E7H 00 0000 0000
FMADRL Program flash
address low
E6H 00 0000 0000
FMCON Program flash
control (Read)
E4H BUSY - - - HVA HVE SV OI 70 0111 0000
Program flash
control (Write)
E4H FMCMD.7 FMCMD.6 FMCMD.5 FMCMD.4 FMCMD.3 FMCMD.2 FMCMD.1 FMCMD.0
FMDATA Program flash
data
E5H 00 0000 0000
I2ADR I
2
C-bus slave
address
register
DBH I2ADR.6 I2ADR.5 I2ADR.4 I2ADR.3 I2ADR.2 I2ADR.1 I2ADR.0 GC 00 0000 0000
Bit address DF DE DD DC DB DA D9 D8
I2CON* I
2
C-bus control
register
D8H - I2EN STA STO SI AA - CRSEL 00 x000 00x0
I2DAT I
2
C-bus data
register
DAH
Table 2. Special function registers
…continued
* indicates SFRs that are bit addressable.
Name Description SFR
addr.
Bit functions and addresses Reset value
MSB LSB Hex Binary