参数资料
型号: MC68HC11FC0CFU5
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: Technical Summary 8-Bit Microcontroller
中文描述: 8-BIT, 6 MHz, MICROCONTROLLER, PQFP64
封装: QFP-64
文件页数: 33/74页
文件大小: 513K
代理商: MC68HC11FC0CFU5
MC68HC11F1/FC0
MOTOROLA
MC68HC11FTS/D
39
* PCSEN is set out of reset in expanded modes and cleared in single-chip modes.
IO1EN — I/O Chip-Select 1 Enable
0 = CSIO1 disabled
1 = CSIO1 enabled
IO1PL — I/O Chip-Select 1 Polarity
0 = CSIO1 active low
1 = CSIO1 active high
IO1EN — I/O Chip-Select 2 Enable
0 = CSIO2 disabled
1 = CSIO2 enabled
IO2PL — I/O Chip-Select 2 Polarity
0 = CSIO2 active low
1 = CSIO2 active high
GCSPR — General-Purpose Chip-Select Priority
0 = Program chip-select has priority over general-purpose chip-select
1 = General-purpose chip-select has priority over program chip-select
Refer to Table 17.
NOTES:
1. EEPROM is present on the MC68HC11F1 only.
Table 16 Chip Select Clock Stretch Control
Clock Stretch
Bits A, B
Clock Stretch
0 0
0 Cycles
0 1
1 Cycle
1 0
2 Cycles
1 1
3 Cycles
CSCTL — Chip-Select Control
$x05D
Bit 7
6
5
4
3
2
1
Bit 0
IO1EN
IO1PL
IO2EN
IO2PL
GCSPR
PCSEN*
PSIZA
PSIZB
RESET:
0
0
Table 17 Chip Select Priorities
GCSPR = 0
GCSPR = 1
On-Chip Registers
On-Chip RAM
Bootloader ROM
On-Chip EEPROM1
On-Chip EEPROM1
I/O Chip Selects
Program Chip Select
General-Purpose Chip Select
Program Chip Select
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