參數(shù)資料
型號(hào)： MB89945PF
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP48
封裝： PLASTIC, QFP-48
文件頁(yè)數(shù)： 6/38頁(yè)
文件大?。?/td> 380K
代理商： MB89945PF
MB89940 Series
14
5.
Setting OTPROM Options
For MB89P945, mask options are described in the internal option PROM area. The table below shows the bit
map of the option PROM. The option data can be written by a standard EPROM programmer.
OTPROM option bit map
Notes:
Default values are all ‘1’.
TOSC: One oscillation clock cycle time
When the bit 0 of “3FF3H” is “0”, it activates the option setting for the Low Voltage Reset Control register.
When this option is activated, software setting in the register has no effect.
6.
Programming Yield
All bits cannot be programmed at Fujitsu shipping test to a blanked OTPROM microcomputer, due to its nature.
For this reason, a programming yield of 100% cannot be assured at all times.
PROM
Address
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
3FF0H
Unused
Reserved
Reset
output
1: Active
0: Inactive
Power-on
reset
1: Active
0: Inactive
Oscillation stabilization
time
11: 218 TOSC 10: 217 TOSC
01: 214 TOSC
3FF1H
P17
Pull-up
1: Inactive
0: Active
P16
Pull-up
1: Inactive
0: Active
P15
Pull-up
1: Inactive
0: Active
P14
Pull-up
1: Inactive
0: Active
P13
Pull-up
1: Inactive
0: Active
P12
Pull-up
1: Inactive
0: Active
Unused
3FF2H
P27
Pull-up
1: Inactive
0: Active
P26
Pull-up
1: Inactive
0: Active
P25
Pull-up
1: Inactive
0: Active
P24
Pull-up
1: Inactive
0: Active
P23
Pull-up
1: Inactive
0: Active
P22
Pull-up
1: Inactive
0: Active
P21
Pull-up
1: Inactive
0: Active
P20
Pull-up
1: Inactive
0: Active
3FF3H
Unused
Low volt.
PDX bit
Low volt.
S1 bit
Low volt.
S0 bit
Low volt.
LVE bit
Low volt.
1: Register
active
0: Option
active
3FF4H
Unused
3FF5H
Unused
3FF6H
Unused
相關(guān)PDF資料
PDF描述
MB89965PFV1-G-XXX 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP48
MB89P965PFM 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP48
MB89965PF-G-XXX 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP48
MB89965PFM-G-XXX 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP48
MB89965PFV-G-XXX 8-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP64
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