PIC18FXX20
26.4 AC (Timing) Characteristics
26.4.1
TIMING PARAMETER SYMBOLOGY
The timing parameter symbols have been created
following one of the following formats:
1. TppS2ppS
2. TppS
T
3. TCC:ST
4. Ts
(I2C specifications only)
(I2C specifications only)
F
Frequency
T
Time
Lowercase letters (pp) and their meanings:
pp
cc
ck
cs
di
do
dt
CCP1
CLKO
CS
SDI
SDO
Data in
I/O port
MCLR
osc
rd
rw
sc
ss
t0
OSC1
RD
RD or WR
SCK
SS
T0CKI
T1CKI
WR
io
mc
t1
wr
Uppercase letters and their meanings:
S
F
H
I
L
Fall
High
P
R
V
Z
Period
Rise
Valid
Hi-impedance
Invalid (Hi-impedance)
Low
I2C only
AA
output access
Bus free
High
Low
High
Low
BUF
TCC:ST (I2C specifications only)
CC
HD
Hold
SU
Setup
ST
DAT
STA
DATA input hold
START condition
STO
STOP condition
DS39609A-page 320
Advance Information
2003 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
