80C31X2 Datasheet, PDF (56/62 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V, low power, high speed 30/33 MHz

Philips Semiconductors
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
Product data
P80C3xX2; P80C5xX2;
P87C5xX2
80C58X2 ROM CODE SUBMISSION
When submitting a ROM code for the 80C58X2, the following must be specified:
1. 32 kbyte user ROM data
2. 64 byte ROM encryption key
3. ROM security bits.
ADDRESS
0000H to 7FFFH
8000H to 803FH
CONTENT
DATA
KEY
BIT(S)
7:0
7:0
8040H
SEC
0
8040H
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.
2003 Jan 24
56