Microchip Technology MA180025 Data Sheet
PIC18F87J90 FAMILY
DS39933D-page 408
2010 Microchip Technology Inc.
28.5
AC (Timing) Characteristics
28.5.1
TIMING PARAMETER SYMBOLOGY
The timing parameter symbols have been created
following one of the following formats:
following one of the following formats:
1. TppS2ppS
3. T
CC
:
ST
(I
2
C specifications only)
2. TppS
4. Ts
(I
2
C specifications only)
T
F
Frequency
T
Time
Lowercase letters (pp) and their meanings:
pp
pp
cc
CCP1
osc
OSC1
ck
CLKO
rd
RD
cs
CS
rw
RD or WR
di
SDI
sc
SCK
do
SDO
ss
SS
dt
Data in
t0
T0CKI
io
I/O port
t1
T13CKI
mc
MCLR
wr
WR
Uppercase letters and their meanings:
S
S
F
Fall
P
Period
H
High
R
Rise
I
Invalid (High-impedance)
V
Valid
L
Low
Z
High-impedance
I
2
C only
AA
output access
High
High
BUF
Bus free
Low
Low
T
CC
:
ST
(I
2
C specifications only)
CC
HD
Hold
SU
Setup
ST
DAT
DATA input hold
STO
Stop condition
STA
Start condition