P83CE559 Datasheet, PDF (68/72 Pages) NXP Semiconductors – Single-chip 8-bit microcontroller

Philips Semiconductors
Single-chip 8-bit microcontroller
Preliminary specification
P83CE559/P80CE559
START or repeated START condition
t_RD
SDA
(INPUT/OUTPUT)
t_FD
t_RC
t_FC
SCL
(INPUT/OUTPUT)
t_HD;STA t_LOW t_HIGH
t_SU;DAT1
t_HD;DAT
repeated START condition
STOP condition
t_SU;STA
START condition
0.7 V_DD
0.3 V_DD
t_BUF
t_SP
t_{SU; STO}
0.7 V_DD
0.3 V_DD
t_SU;DAT3
t_SU;DAT2
Figure 63. Timing SIO1 (I²C) Interface
INSTRUCTION
ALE
CLOCK
OUTPUT DATA
WRITE TO SBUF
INPUT DATA
CLEAR RI
0
1
2
3
4
5
6
7
8
t_XLXL
t_QVXH
t_XHQX
0
1
t_XHDV
2
t_XHDX
VALID
VALID
VALID
3
VALID
4
VALID
5
VALID
Figure 64. UART waveforms in Shift Register Mode
6
VALID
7
SET TI
VALID
SET RI
1996 Aug 06
68