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PIC18F2220 Datasheet, PDF (342/388 Pages) Microchip Technology – 28/40/44-Pin High-Performance, Enhanced Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology
PIC18F2220/2320/4220/4320
FIGURE 26-21: USART SYNCHRONOUS TRANSMISSION (MASTER/SLAVE) TIMING
RC6/TX/CK
pin
RC7/RX/DT
pin
121
121
120
122
Note: Refer to Figure 26-5 for load conditions.
TABLE 26-22: 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 26-22: USART SYNCHRONOUS RECEIVE (MASTER/SLAVE) TIMING
RC6/TX/CK
pin
RC7/RX/DT
pin
125
126
Note: Refer to Figure 26-5 for load conditions.
TABLE 26-23: USART SYNCHRONOUS RECEIVE REQUIREMENTS
Param.
No.
Symbol
Characteristic
Min Max
125 TDTV2CKL SYNC RCV (MASTER & SLAVE)
Data Hold before CK ↓ (DT hold time)
126 TCKL2DTL Data Hold after CK ↓ (DT hold time)
10
—
15
—
Units
ns
ns
Conditions
DS39599C-page 340
 2003 Microchip Technology Inc.