|
PIC18F2331 Datasheet, PDF (371/396 Pages) Microchip Technology – 28/40/44-Pin Enhanced Flash Microcontrollers with nanoWatt Technology, High Performance PWM and A/D | |||
|
◁ |
PIC18F2331/2431/4331/4431
FIGURE 25-19: USART SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING
RC6/TX/CK
pin
RC7/RX/DT
pin
121
121
120
122
Note: Refer to Figure 25-4 for load conditions.
TABLE 25-19: USART SYNCHRONOUS TRANSMISSION REQUIREMENTS
Param
No.
Symbol
Characteristic
Min
Max
120 TckH2dtV SYNC XMIT (MASTER & SLAVE)
Clock high to data out valid
PIC18FXX31
â
40
PIC18LFXX31 â
100
121 Tckrf
Clock out rise time and fall time
PIC18FXX31
â
20
(Master mode)
PIC18LFXX31 â
50
122 Tdtrf
Data out rise time and fall time
PIC18FXX31
â
20
PIC18LFXX31 â
50
Units Conditions
ns
ns
ns
ns
ns
ns
FIGURE 25-20: USART SYNCHRONOUS RECEIVE (MASTER/SLAVE) TIMING
RC6/TX/CK
pin
RC7/RX/DT
pin
125
126
Note: Refer to Figure 25-4 for load conditions.
TABLE 25-20: USART SYNCHRONOUS RECEIVE REQUIREMENTS
Param.
No.
Symbol
Characteristic
Min Max
125 TdtV2ckl SYNC RCV (MASTER & SLAVE)
Data hold before CK â (DT hold time)
126 TckL2dtl Data hold after CK â (DT hold time)
10
â
15
â
Units
ns
ns
Conditions
 2003 Microchip Technology Inc.
Preliminary
DS39616B-page 369
|
▷ |