參數(shù)資料
型號: MC9S12C32MFU
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 27/94頁
文件大小: 906K
代理商: MC9S12C32MFU
Device User Guide — 9S12C32DGV1/D V01.01
33
Figure 3-1 Clock Connections
Section 4 Modes of Operation
4.1 Overview
Eight possible modes determine the operating configuration of the MC9S12C32. Each mode has an
associated default memory map and external bus configuration.
Three low power modes exist for the device.
4.2 Modes of Operation
The operating mode out of reset is determined by the states of the MODC, MODB, and MODA pins during
reset (Table 4-1). The MODC, MODB, and MODA bits in the MODE register show the current operating
mode and provide limited mode switching during operation. The states of the MODC, MODB, and MODA
pins are latched into these bits on the rising edge of the reset signal. The MODA and MODB pins are not
available in the 48 and 52 pin package versions. The MODA and MODB signals are pulled down
internally, restricting the mode selection to Single Chip Modes.
CRG
bus clock
core clock
EXTAL
XTAL
oscillator clock
S12_CORE
VREG
RAM
SCI
ATD
Flash
TIM
TPM
SPI
MSCAN
PIM
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相關代理商/技術參數(shù)
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