参数资料
型号: MC68HC11C0MFN2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 2 MHz, MICROCONTROLLER, PQCC68
封装: PLASTIC, LCC-68
文件页数: 2/76页
文件大小: 394K
代理商: MC68HC11C0MFN2
MOTOROLA
MC68HC11C0
10
MC68HC11C0TS/D
Bit 4 — Not implemented
Always reads zero
PSEL[3:0] — Priority Select Bits [3:0]
Bits [7:5] — Not implemented
Always read zero
IRVNE — Internal Read Visibility/Not E
IRVNE can be written once in any mode. In expanded and special-test modes, IRVNE determines
whether IRV is on or off. In special test mode, IRVNE is reset to one. In all other modes, IRVNE is reset
to zero.
0 = No internal read visibility on external bus
1 = Data from internal reads is driven out the external data bus.
In single-chip and bootstrap modes this bit determines whether the E clock drives out from the chip.
0 = E is driven out from the chip.
1 = E pin is driven low. Refer to the following table.
Bits [3:0] — Not implemented
Always read zero
OPT2 — System Configuration Options 2
$0038
Bit 7
654321
Bit 0
IRVNE
————
RESET:
0
0000000
Mode
IRVNE Out
of Reset
E Clock Out
of Reset
IRV Out of
Reset
IRVNE
Affects Only
IRVNE Can
Be Written
Expanded
0
On
Off
IRV
Once
Special Test
1
On
IRV
Once
Single Chip
0
On
Off
E
Once
Bootstrap
0
On
Off
E
Once
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