DS5003 Datasheet, PDF (10/24 Pages) Maxim Integrated Products – Secure Microprocessor Chip

Secure Microprocessor Chip
0
1
2
3
4
5
6
7
8
ALE
CLOCK
DATA OUT
t_SPCLK
t_DOCH
t_CHDO
0
1
2
3
4
5
6
7 SET TI
WRITE TO SBUF REGISTER
INPUT DATA
CLEAR RI
t_CHDIV
t_CHDV
VALID
VALID
VALID
Figure 5. Serial Port Timing (Mode 0)
VALID
VALID
VALID
VALID
SET RI
MACHINE CYCLE
MACHINE CYCLE
1 2 345 6123456
XTAL2
MACHINE CYCLE
6 1 2 3 4 56
ALE
R/W
t_RWLPW
t_AVRWL
BA0–BA14 PC OUT
PC OUT
t_CEL1LPA
CE1, CE2,
OR CE1N
t_CEL1HPA
CE1, CE2, CE3,
CE4, PE1, PE2,
PE3, PE4, OR CE1N
t_OVCE1H
BD0–BD7 ^{DATA IN}
DATA IN
DPL AND (DPH OR P2 SFR OUT)
t_CELDA
t_CEHDA
PC OUT
DPL AND (DPH OR P2 SFR OUT)
t_CELDA
t_CEHDA
PC OUT
t_CEPW
t_CE1HOV
t_DACEH
DATA IN
t_CEHDV
DATA
t_RWLDV
t_CEPW
DATA OUT
t_RWHDV
t_CEHDV
Figure 6. Byte-Wide Bus Timing
10 ______________________________________________________________________________________