P83C51RA5N 데이터 시트보기 (PDF) - Philips Electronics

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P83C51RA5N

80C51 8-bit microcontroller family 8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V), low power, high speed (33 MHz)

Philips Electronics 

Philips Semiconductors

80C51 8-bit microcontroller family

8K–64K/256–1K OTP/ROM/ROMless, low voltage (2.7V–5.5V),

low power, high speed (33MHz)

Product specification

8XC52/54/58/80C32

8XC51FA/FB/FC/80C51FA

8XC51RA+/RB+/RC+/RD+/80C51RA+

ROM CODE SUBMISSION FOR 64K ROM DEVICE (83C51RD+)

When submitting ROM code for the 64K ROM devices, the following must be specified:

1. 64k byte user ROM data

2. 64 byte ROM encryption key

3. ROM security bits.

ADDRESS

0000H to FFFFH

10000H to 1003FH

CONTENT

DATA

KEY

BIT(S)

7:0

7:0

10040H

SEC

0

10040H

SEC

1

Security Bit 1: When programmed, this bit has two effects on masked ROM parts:

1. External MOVC is disabled, and

2. EA is latched on Reset.

Security Bit 2: When programmed, this bit inhibits Verify User ROM.

NOTE: Security Bit 2 cannot be enabled unless Security Bit 1 is enabled.

COMMENT

User ROM Data

ROM Encryption Key

FFH = no encryption

ROM Security Bit 1

0 = enable security

1 = disable security

ROM Security Bit 2

0 = enable security

1 = disable security

If the ROM Code file does not include the options, the following information must be included with the ROM code.

For each of the following, check the appropriate box, and send to Philips along with the code:

Security Bit #1: V Enabled

V Disabled

Security Bit #2: V Enabled

V Disabled

Encryption:

V No

V Yes If Yes, must send key file.

1999 Apr 01

51

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