參數(shù)資料
型號: MC56F8355MFGE
廠商: Freescale Semiconductor
文件頁數(shù): 18/172頁
文件大?。?/td> 0K
描述: IC DSP 16BIT 60MHZ 128-LQFP
標準包裝: 72
系列: 56F8xxx
核心處理器: 56800E
芯體尺寸: 16-位
速度: 60MHz
連通性: CAN,EBI/EMI,SCI,SPI
外圍設(shè)備: POR,PWM,溫度傳感器,WDT
輸入/輸出數(shù): 49
程序存儲器容量: 264KB(132K x 16)
程序存儲器類型: 閃存
RAM 容量: 10K x 16
電壓 - 電源 (Vcc/Vdd): 2.25 V ~ 3.6 V
數(shù)據(jù)轉(zhuǎn)換器: A/D 16x12b
振蕩器型: 外部
工作溫度: -40°C ~ 125°C
封裝/外殼: 128-LQFP
包裝: 托盤
配用: MC56F8367EVME-ND - EVAL BOARD FOR MC56F83X
56F8355 Technical Data, Rev. 17
114
Freescale Semiconductor
Preliminary
6.5.8
GPIO Peripheral Select Register (SIM_GPS)
The GPIO Peripheral Select register can be used to multiplex out any one of the three alternate peripherals
for GPIOC. The default peripheral is Quad Decoder 1 and Quad Decoder 1, (NOT available in the
56F8155 device); these peripherals work together.
The four I/O pins associated with GPIOC can function as GPIO, Quad Decoder 1/Quad Decoder 1, or as
SPI 1 signals. GPIO is not the default and is enabled/disabled via the GPIOC_PER, as shown in
Figure 6-10 and Table 6-2. When GPIOC[3:0] are programmed to operate as peripheral I/O, then the
choice between decoder/timer and SPI inputs/outputs is made in the SIM_GPS register and in conjunction
with the Quad Timer Status and Control Registers (SCR). The default state is for the peripheral function
of GPIOC[3:0] to be programmed as decoder functions. This can be changed by altering the appropriate
controls in the indicated registers.
Figure 6-10 Overall Control of Pads Using SIM_GPS Control
Table 6-2 Control of Pads Using SIM_GPS Control 1
Pin Function
Control Registers
Comments
GPI
O
C_
PER
GPIOC_
DTR
SI
M
_
G
P
S
Qu
ad
T
imer
SCR
Regis
ter
OEN
bits
GPIO Input
0
GPIO Output
0
1
Quad Timer Input /
Quad Decoder Input 2
1
0
See the “Switch Matrix for Inputs to the Timer”
table in the 56F8300 Peripheral User Manual
for the definition of timer inputs based on the
Quad Decoder mode configuration.
Quad Timer Output /
Quad Decoder Input 3
1—
0
1
GPIOC_PER Register
GPIO Controlled
I/O Pad Control
SIM_ GPS Register
Quad Timer Controlled
SPI Controlled
0
1
0
1
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