P89C662HBA/00,512 NXP Semiconductors, P89C662HBA/00,512 Datasheet - Page 70

• Manufacturer Part Number: P89C662HBA/00,512
• Description: IC 80C51 MCU FLASH 32K 44-PLCC
• Manufacturer: NXP Semiconductors
• Series: 89Cr

Specifications of P89C662HBA/00,512

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 33MHz
• Connectivity: I²C, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Other names: 568-1269-5; 935267444512; P89C662HBA

Philips Semiconductors
2002 Oct 28
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM
ERASE BOOT VECTOR &
STATUS BYTE
PROGRAM SECURITY BIT
IAP CALL
Input Parameters:
Return Parameter
Sample routine:
Input Parameters:
Return Parameter
Sample routines:
R0 = osc freq (integer)
R1 = 04h
R1 = 84h (WDT feed, Rx2 & 66x only)
DPH = 00h
DPL = don’t care
none
;***** Erase Boot Vector (BV) & Status Byte (SB) *****
;***** Note: This command erases BOTH the SB & BV
ERSBBV;
R0 = osc freq (integer)
R1 = 05h
R1 = 85h (WDT feed, Rx2 & 66x only)
DPH = 00h
DPL = 00h – security bit # 1 (inhibit writing to Flash)
none
;***** Program Security Bit1 *****
;***** DPTR indicates security bit to program *****
WRSB1:
;***** Program Security Bit2 *****
;***** DPTR indicates security bit to program *****
WRSB2:
;***** Program Security Bit3 *****
;***** DPTR indicates security bit to program *****
WRSB3:
01h – security bit # 2 (inhibit Flash verify)
02h – security bit # 3 (disable external memory)
MOV
MOV
MOV
MOV
CALL
RET
MOV
MOV
MOV
MOV
CALL
RET
MOV
MOV
MOV
MOV
CALL
RET
MOV
MOV
MOV
MOV
CALL
RET
AUXR1,#20H
R0, #11
R1,#04H
DPH,#00h
PGM_MTP
AUXR1,#20H
R0,#11
R1,#05H
DPTR,#0000h
PGM_MTP
AUXR1,#20H
R0,#11
R1,#05H
DPTR,#0001h
PGM_MTP
AUXR1,#20H
R0,#11
R1,#05H
DPTR,#0002h
PGM_MTP
70
PARAMETER
;set the ENBOOT bit
;FOSC
;erase status byte & boot vector
;we don’t care about DPL
;execute the function
;set the ENBOOT bit
;FOSC
;program security bit function
;specify security bit 1
;execute the function
;set the ENBOOT bit
;FOSC
;program security bit function
;specify security bit 2
;execute the function
;set the ENBOOT bit
;FOSC
;program security bit function
;specify security bit 3
;execute the function
P89C660/P89C662/P89C664/
P89C668
Product data