参数资料
型号: MC56F8122VFAE
厂商: Freescale Semiconductor
文件页数: 122/136页
文件大小: 0K
描述: IC DSP 16BIT 40MHZ 48-LQFP
标准包装: 250
系列: 56F8xxx
核心处理器: 56800E
芯体尺寸: 16-位
速度: 40MHz
连通性: SCI,SPI
外围设备: POR,WDT
输入/输出数: 21
程序存储器容量: 32KB(16K x 16)
程序存储器类型: 闪存
RAM 容量: 4K x 16
电压 - 电源 (Vcc/Vdd): 2.25 V ~ 3.6 V
数据转换器: A/D 6x12b
振荡器型: 内部
工作温度: -40°C ~ 105°C
封装/外壳: 48-LQFP
包装: 托盘
产品目录页面: 734 (CN2011-ZH PDF)
56F8322 Techncial Data, Rev. 16
86
Freescale Semiconductor
Preliminary
6.5.6.3
IRQ—Bit 10
This bit controls the pull-up resistors on the IRQA pin.
6.5.6.4
Reserved—Bits 9–4
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
6.5.6.5
JTAG—Bit 3
This bit controls the pull-up resistors on the TRST (This pin is always tied inactive on the 56F8322), TMS
and TDI pins.
6.5.6.6
Reserved—Bits 2–0
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
6.5.7
CLKO Select Register (SIM_CLKOSR)
The CLKO select register can be used to multiplex out any one of the clocks generated inside the clock
generation and SIM modules. The default value is SYS_CLK. All other clocks primarily muxed out are
for test purposes only, and are subject to significant unspecified latencies at high frequencies.
The upper four bits of the GPIOB register can function as GPIO, Quad Decoder #0 signals, or as additional
clock output signals. GPIO has priority and is enabled/disabled via the GPIOB_PER. If GPIOB[7:4] are
programmed to operate as peripheral outputs, then the choice between Quad Decoder #0 and additional
clock outputs is made here in the CLKOSR. The default state is for the peripheral function of GPIOB[7:4]
to be programmed as Quad Decoder #0. This can be changed by altering PHASE0 through INDEX as
shown in Figure 6-9.
The CLKOUT pin is not bonded out in this device. Instead, it is offered only as a pad for die-level testing.
Figure 6-9 CLKO Select Register (SIM_CLKOSR)
6.5.7.1
Reserved—Bits 15–10
This bit field is reserved or not implemented. It is read as 0 and cannot be modified by writing.
6.5.7.2
PHASEA0 (PHSA)—Bit 9
0 = Peripheral output function of GPIOB[7] is defined to be PHASEA0
1 = Peripheral output function of GPI B[7] is defined to be the oscillator clock (MSTR_OSC, see
6.5.7.3
PHASEB0 (PHSB)—Bit 8
0 = Peripheral output function of GPIOB[6] is defined to be PHASEB0
1 = Peripheral output function of GPIOB[6] is defined to be SYS_CLK2
Base + $A
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Read
0
PHSA PHSB INDEX HOME
CLK
DIS
CLKOSEL
Write
RESET
0
000
0
1
0
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