參數(shù)資料
型號(hào): MC68HC05G3
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 103/128頁
文件大小: 290K
代理商: MC68HC05G3
Page 66
MOTOROLA
Section 7: SERIAL PERIPHERAL INTERFACE (SPI)
MC68HC05G3 (705G4) Specification Rev. 1.1
After 8-bit data is shifted in/out, SCK stops and SPIF is set, and if SPIE is enabled, an
interrupt request is generated.
The slave device in the stop mode wakes up by this
interrupt. Further transfer (write to SPDR) is inhibited while SPIF is 1.
Figure 7-1: SPI Master-Slave Interconnection illustrates the master-slave basic
interconnection.
Figure 7-1: SPI Master-Slave Interconnection
7.2.1
INTERNAL BLOCK DESCRIPTIONS
This section describes the main blocks in the SPI module.
Figure 7-2: SPI Block Diagram
SCK
SDI
SDO
SDI
SPDR
HFF
CLK GEN
SPDR
HFF
CLK GEN
MASTER DEVICE
SLAVE DEVICE
CONTROL LOGIC
SPSR
SPCR
SPDR
HFF
SDO
CLOCK GENERATOR
SCK
INTERNAL BUS
INTERRUPT
CONTROLS &
ADDRESS BUS
DATA BUS
M
S
T
R
S
P
E
S
T
A
R
T
D
C
O
L
S
P
I
F
SDI
000000
000
DORD
S
P
R
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