P89LPC9321FDH 查看數據表（PDF） - NXP Semiconductors.

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P89LPC9321FDH

8-bit microcontroller with accelerated two-clock 80C51 core 8 kB 3 V byte-erasable flash with 512-byte data EEPROM

NXP Semiconductors. 

Table 5.

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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] 1000 0100

PGACON1

PGA1 control FFE1H ENPGA1 PGASEL1 PGASEL1 PGATRIM

-

register

1

0

1

-

PGAG11 PGAG10 00 0000 0000

PGACON1B

PGA1 control FFE4H

-

-

-

-

-

-

-

PGAENO 00 0000 0000

register B

FF1

PGA1TRIM8X16X PGA1 trim

register

FFE3H 16XTRIM3 16XTRIM2 16XTRIM1 16XTRIM0 8XTRIM3 8XTRIM2 8XTRIM1 8XTRIM0 [4]

PGA1TRIM2X4X PGA1 trim

register

FFE2H 4XTRIM3 4XTRIM2 4XTRIM1 4XTRIM0 2XTRIM3 2XTRIM2 2XTRIM1 2XTRIM0 [4]

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.

[4] On power-on reset and watchdog reset, the PGAxTRIM8X16X and PGAxTRIM2X4X registers are initialized with a factory preprogrammed value. Other resets will not cause

initialization.

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