参数资料
型号: MC56F8257MLH
厂商: Freescale Semiconductor
文件页数: 37/88页
文件大小: 0K
描述: DSC 64K FLASH 60MHZ 64-LQFP
标准包装: 160
系列: 56F8xxx
核心处理器: 56800E
芯体尺寸: 16-位
速度: 60MHz
连通性: CAN,I²C,LIN,SCI,SPI
外围设备: LVD,POR,PWM,WDT
输入/输出数: 54
程序存储器容量: 64KB(32K x 16)
程序存储器类型: 闪存
RAM 容量: 4K x 16
电压 - 电源 (Vcc/Vdd): 3 V ~ 3.6 V
数据转换器: A/D 16x12b,D/A 1x12b
振荡器型: 内部
工作温度: -40°C ~ 105°C
封装/外壳: 64-LQFP
包装: 管件
MC56F825x/MC56F824x Digital Signal Controller, Rev. 3
General System Control Information
Freescale Semiconductor
42
5.7.2
Crossbar Switch Connections
The Crossbar Switch module provides a generic mechanism for making connections between on-chip peripherals as well as
between peripherals and pins. It provides a purely combinational path from input to output. The module groups 30 identical
multiplexes with 22 shared inputs. All Crossbar control registers that are used to select one of the 22 input signals to output are
write protected. Control of the write protection setting is in the SIM_PROT register.
In general, the crossbar module connects the Enhanced Flex PWM, ADC, Quad Timers, and comparators together, which allows
synchronization between PWM pulse generation and ADC sampling. In addition, several crossbar inputs and outputs are routed
to package pins. For example, the user can define an XB_INn pin as a PWM fault protection input that is routed to the PWM
module through the crossbar, increasing the flexibility of pin use and reducing the complexity of PCB layout.
M0 (from package pin)
CMPA_M0
CMPB_M0
CMPC_M0
M1 (from package pin)
CMPA_M1
CMPB_M1
CMPC_M1
M2 (from package pin)
CMPA_M2
CMPB_M2
CMPC_M2
M3 (from internal)
12-bit DAC
Table 14. Connections by Comparator Inputs (continued)
Comparator Input
Comparator A
Comparator B
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