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P89CV51RB2_RC2_RD2_3 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 03 — 25 August 2009 10 of 76
NXP Semiconductors
P89CV51RB2/RC2/RD2
80C51 with 1 kB RAM, SPI
Table 4. Special function registers
* indicates SFRs that are bit addressable.
Name Description SFR
address
Bit functions and addresses
[1]
MSB LSB
Bit address E7 E6 E5 E4 E3 E2 E1 E0
ACC* Accumulator E0H --------
AUXR Auxiliary function Register 8EH ------EXTRAM AO
AUXR1 Auxiliary function Register 1 A2H - - ENBOOT - GF2 0 - DPS
Bit address F7 F6 F5 F4 F3 F2 F1 F0
B* B register F0H --------
CCAP0H Module 0 Capture High FAH --------
CCAP1H Module 1 Capture High FBH --------
CCAP2H Module 2 Capture High FCH --------
CCAP3H Module 3 Capture High FDH --------
CCAP4H Module 4 Capture High FEH --------
CCAP0L Module 0 Capture Low EAH --------
CCAP1L Module 1 Capture Low EBH --------
CCAP2L Module 2 Capture Low ECH --------
CCAP3L Module 3 Capture Low EDH --------
CCAP4L Module 4 Capture Low EEH --------
CCAPM0 Module 0 mode DAH - ECOM_0 CAPP_0 CAPN_0 MAT_0 TOG_0 PWM_0 ECCF_0
CCAPM1 Module 1 mode DBH - ECOM_1 CAPP_1 CAPN_1 MAT_1 TOG_1 PWM_1 ECCF_1
CCAPM2 Module 2 mode DCH - ECOM_2 CAPP_2 CAPN_2 MAT_2 TOG_2 PWM_2 ECCF_2
CCAPM3 Module 3 mode DDH - ECOM_3 CAPP_3 CAPN_3 MAT_3 TOG_3 PWM_3 ECCF_3
CCAPM4 Module 4 mode DEH - ECOM_4 CAPP_4 CAPN_4 MAT_4 TOG_4 PWM_4 ECCF_4
Bit address DF DE DD DC DB DA D9 D8
CCON* PCA Counter Control D8H CF CR - CCF4 CCF3 CCF2 CCF1 CCF0
CH PCA Counter High F9H --------
CL PCA Counter Low E9H --------
CMOD PCA Counter Mode D9H CIDL WDTE - - - CPS1 CPS0 ECF
CKCON Clock Control 8FH SPIX2 WDX2 PCAX2 SIX2 T2X2 T1X2 T0X2 X2
