P87C660X2 PHILIPS [NXP Semiconductors], P87C660X2 Datasheet - Page 98

• Manufacturer Part Number: P87C660X2
• Description: 80C51 8-bit microcontroller family
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
ROM CODE SUBMISSION FOR 16K ROM DEVICES (83C66x)
When submitting ROM code for the 16K ROM devices, the following must be specified:
1. 16k byte user ROM data
2. 64 byte ROM encryption key
3. ROM security bits.
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.
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:
2003 Oct 02
80C51 8-bit microcontroller family
RAM, low voltage (2.7 to 5.5 V), low power, high speed (30/33
MHz), two 400KB I
ADDRESS
0000H to 3FFFH
4000H to 403FH
4040H
4040H
Security Bit #1:
Security Bit #2:
Encryption:
2
C interfaces
Enabled
Enabled
No
CONTENT
DATA
KEY
SEC
SEC
16 KB OTP/ROM, 512B
Disabled
Disabled
Yes
If Yes, must send key file.
98
BIT(S)
7:0
7:0
0
1
P8xC660X2/661X2
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
Product data