參數(shù)資料
型號(hào): 87C576
廠商: NXP Semiconductors N.V.
英文描述: 80C51 8-bit microcontroller family(80C51八位微控制器系列)
中文描述: 80C51的8位單片機(jī)系列(80C51的八位微控制器系列)
文件頁數(shù): 28/46頁
文件大?。?/td> 447K
代理商: 87C576
Philips Semiconductors
Product specification
83C576/87C576
80C51 8-bit microcontroller family
8K/256 OTP/ROM, 6 channel 10-bit A/D, 4 comparators,
failure detect circuitry, watchdog timer
1998 Jun 04
28
ROM CODE SUBMISSION
When submitting ROM code for the 83C576, the following must be specified:
1. 8k byte user ROM data
2. 32 byte ROM encryption key
3. ROM security bits
4. The watchdog timer parameters. (See Watchdog Timer Specifications for definition of WDL and WDCON bits.)
ADDRESS
CONTENT
BIT(S)
COMMENT
0000H to 1FFFH
DATA
7:0
User ROM Data
2000H to 201FH
KEY
7:0
ROM Encryption Key
FFH = no encryption
ROM Security Bit 1
0 = enable security
1 = disable security
2020H
SEC
0
1
ROM Security Bit 2
0 = enable security
1 = disable security
2030H
WDCON
7:5
PRE2:0
4
LVRE
3
OFRE
2
DPD
1
WDRUN = 0, not ROM coded
0
WDMOD
2031H
WDL
7:0
Watchdog autoload value
(see specification)
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.
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:
Enabled
Disabled
Security Bit #2:
Enabled
Disabled
Encryption:
No
Yes
If Yes, must send key file.
Watchdog/Timer Modes:
Watchdog Mode
Timer Mode
Prescaler Value:
(Value = 64, 128, 256, 512, 1024, 2048, 4096, 8192)
Value
Autoload Value (range 0–255):
Low Voltage Reset (Value 0 or 1):
Oscillator Fail Reset (Value 0 or 1):
Power-Down (Value 0 or 1):
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