P89LPC931A1FDH(2009) 查看數據表（PDF） - NXP Semiconductors.

零件编号

产品描述 (功能)

生产厂家

P89LPC931A1FDH
(Rev.:2009)

8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable flash

NXP Semiconductors. 

Table 5.

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxx x x x xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xx xx

xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxx xxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxx x x

xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx

xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx

Extended special function registers[1]

Name

Description

SFR

addr.

Bit functions and addresses

MSB

LSB

Reset value

Hex Binary

BODCFG

BOD

FFC8H

-

-

-

-

-

-

BOICFG1 BOICFG0 [2]

configuration

register

CLKCON

CLOCK Control FFDEH CLKOK

-

register

-

XTALWD CLKDBL FOSC2 FOSC1 FOSC0 [3]

RTCDATH

Real-time clock

data register

high

FFBFH

00 0000 0000

RTCDATL

Real-time clock FFBEH

data register low

00 0000 0000

[1] Extended SFRs are physically located on-chip but logically located in external data memory address space (XDATA). The MOVX A,@DPTR and MOVX @DPTR,A instructions are

used to access these extended SFRs.

[2] The BOICFG1/0 will be copied from UCFG1.5 and UCFG1.3 when power-on reset.

[3] CLKCON register reset value comes from UCFG1 and UCFG2. The reset value of CLKCON.2 to CLKCON.0 come from UCFG1.2 to UCFG1.0 and reset value of CLKDBL bit

comes from UCFG2.7.

Share Link: