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P89C51RB2BA Datasheet(PDF) 46 Page - NXP Semiconductors

Part # P89C51RB2BA
Description  80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
PDF  52 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P89C51RB2BA Datasheet(HTML) 46 Page - NXP Semiconductors

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Philips Semiconductors
Preliminary specification
89C51RB2/89C51RC2/
89C51RD2
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/512B/1KB RAM
1999 Sep 23
46
IAP CALL
PARAMETER
READ MANUFACTURER ID
Input Parameters:
R0 = osc freq (integer)
R1 = 00h
DPH = 00h
DPL = 00h (manufacturer ID)
Return Parameter
ACC = value of byte read
READ DEVICE ID # 1
Input Parameters:
R0 = osc freq (integer)
R1 = 00h
DPH = 00h
DPL = 01h (device ID # 1)
Return Parameter
ACC = value of byte read
READ DEVICE ID # 2
Input Parameters:
R0 = osc freq (integer)
R1 = 00h
DPH = 00h
DPL = 02h (device ID # 2)
Return Parameter
ACC = value of byte read
READ SECURITY BITS
Input Parameters:
R0 = osc freq (integer)
R1 = 07h
DPH = 00h
DPL = 00h (security bits)
Return Parameter
ACC = value of byte read
READ STATUS BYTE
Input Parameters:
R0 = osc freq (integer)
R1 = 07h
DPH = 00h
DPL = 01h (status byte)
Return Parameter
ACC = value of byte read
READ BOOT VECTOR
Input Parameters:
R0 = osc freq (integer)
R1 = 07h
DPH = 00h
DPL = 02h (boot vector)
Return Parameter
ACC = value of byte read
FULL CHIP ERASE
Input Parameters:
R0 = osc frequency
R1 = 08h
DPH = don’t care
DPL = don’t care
Return Parameter
none



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