PIC18FXX20 Datasheet, PDF (340/366 Pages) Microchip Technology – 64/80-Pin High Performance 1 Mbit Enhanced FLASH Microcontrollers with A/D

PIC18FXX20
FIGURE 26-24: USART SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING
RC6/TX1/CK1
pin
RC7/RX1/DT1
pin
121
121
120
122
Note: Refer to Figure 26-6 for load conditions.
TABLE 26-23: USART SYNCHRONOUS TRANSMISSION REQUIREMENTS
Param.
No.
Symbol
Characteristic
Min
Max
120 TckH2dtV SYNC XMIT (MASTER & SLAVE)
Clock high to data out valid
PIC18FXX20
—
40
PIC18LFXX20 —
100
121 Tckrf
Clock out rise time and fall time
PIC18FXX20
—
20
(Master mode)
PIC18LFXX20 —
50
122 Tdtrf
Data out rise time and fall time
PIC18FXX20
—
20
PIC18LFXX20 —
50
Units Conditions
ns
ns
ns
ns
ns
ns
FIGURE 26-25: USART SYNCHRONOUS RECEIVE (MASTER/SLAVE) TIMING
RC6/TX1/CK1
pin
RC7/RX1/DT1
pin
125
126
Note: Refer to Figure 26-6 for load conditions.
TABLE 26-24: USART SYNCHRONOUS RECEIVE REQUIREMENTS
Param.
No.
Symbol
125 TdtV2ckl
126 TckL2dtl
Characteristic
SYNC RCV (MASTER & SLAVE)
Data hold before CK ↓ (DT hold time)
Data hold after CK ↓ (DT hold time)
Min Max Units
10
—
ns
15
—
ns
Conditions
DS39609A-page 338
Advance Information
 2003 Microchip Technology Inc.