P89CV51RC2FA NXP Semiconductors, P89CV51RC2FA Datasheet - Page 25

• Manufacturer Part Number: P89CV51RC2FA
• Description: MCU 8-Bit 89C 80C51 CISC 32KB Flash 5V 44-Pin PLCC Tube
• Manufacturer: NXP Semiconductors

Specifications of P89CV51RC2FA

• Package: 44PLCC
• Device Core: 80C51
• Family Name: 89C
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 32
• Interface Type: SPI/UART
• Number Of Timers: 3
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Program Memory Type: Flash
• Operating Temperature: -40 to 85 °C

NXP Semiconductors
P89CV51RB2_RC2_RD2_3
Product data sheet
Table 12.
IAP function
Erase 8 kB/16 kB code block
Program user code
Read user code
Erase status bit and boot vector
Program security bits
IAP function calls
Rev. 03 — 25 August 2009
…continued
IAP call parameters
Input parameters:
R1 = 01H or 81H (WDT feed)
DPH = 00H, block 0, 0 kB to 8 kB
DPH = 20H, block 1, 8 kB to 16 kB
DPH = 40H, block 2, 16 kB to 32 kB
DPH = 80H, block 3, 32 kB to 48 kB
DPH = C0H, block 4, 48 kB to 64 kB
Return parameter(s):
ACC = 00: pass
ACC is not 00: fail
Input parameters:
R1 = 02H or 82H (WDT feed)
DPH = memory address MSB
DPL = memory address LSB
ACC = byte to program
Return parameter(s):
ACC = 00: pass
ACC is not 00: fail
Input parameters:
R1 = 03H or 83H (WDT feed)
DPH = memory address MSB
DPL = memory address LSB
Return parameter(s):
ACC = device data
Input parameters:
R1 = 04H or 84H (WDT feed)
DPL = don’t care
DPH = don’t care
Return parameter(s):
ACC = 00: pass
ACC is not 00: fail
Input parameters:
R1 = 05H or 85H (WDT feed)
DPL = 00H = security bit 1
DPL = 01H = security bit 2
DPL = 02H = security bit 3
Return parameter(s):
ACC = 00: pass
ACC is not 00: fail
P89CV51RB2/RC2/RD2
80C51 with 1 kB RAM, SPI
© NXP B.V. 2009. All rights reserved.
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