参数资料
型号: MC68331CPV16
厂商: Freescale Semiconductor
文件页数: 9/84页
文件大小: 0K
描述: IC MCU 32BIT 16MHZ 144-LQFP
标准包装: 60
系列: M683xx
核心处理器: CPU32
芯体尺寸: 32-位
速度: 16MHz
连通性: EBI/EMI,SCI,SPI,UART/USART
外围设备: POR,PWM,WDT
输入/输出数: 18
程序存储器类型: ROMless
电压 - 电源 (Vcc/Vdd): 4.5 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 144-LQFP
包装: 托盘
MC68331TS/D
17
Figure 6 System Configuration and Protection Block
3.2.1 System Configuration
The SIM controls MCU configuration during normal operation and during internal testing.
The SIM configuration register controls system configuration. It can be read or written at any time, ex-
cept for the module mapping (MM) bit, which can be written only once.
EXOFF —External Clock Off
0 = The CLKOUT pin is driven from an internal clock source.
1 = The CLKOUT pin is placed in a high-impedance state.
FRZSW —Freeze Software Enable
0 = When FREEZE is asserted, the software watchdog and periodic interrupt timer counters con-
tinue to run.
1 = When FREEZE is asserted, the software watchdog and periodic interrupt timer counters are dis-
abled, preventing interrupts during software debug.
FRZBM —Freeze Bus Monitor Enable
0 = When FREEZE is asserted, the bus monitor continues to operate.
1 = When FREEZE is asserted, the bus monitor is disabled.
SIMCR —SIM Configuration Register
$YFFA00
15
14
13
12
11
10
9
8
7
6
5
4
3
0
EXOFF
FRZSW FRZBM
0
SLVEN
0
SHEN
SUPV
MM
0
IARB
RESET:
0
DATA11
0
1
0
1
300 SYS PROTECT BLOCK
RESET STATUS
HALT MONITOR
BUS MONITOR
SPURIOUS INTERRUPT MONITOR
SOFTWARE WATCHDOG TIMER
PERIODIC INTERRUPT TIMER
2
9
PRESCALER
CLOCK
IRQ[7:1]
BERR
RESET REQUEST
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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