Maxim DS80C400, Руководство пользователя, Страница: 28 / 96

DS80C400 Network Microcontroller
28 of 96
BLOCK DIAGRAM
OW O
W
ST
P
V
CC1
(1
)
V
CC3
(4
)
V
SS
(4
)
RST
RSTOL
MU
X
E
A
PS
EN
AL
E
XT
AL
1
XT
AL
2
ADDRESS BUS
DATA BUS
PORT 1
PO
RT
7
PORT L
A
TCH
PO
RT
6
PORT L
A
TCH
PORT L
A
TCH
PO
RT
3
PORT LATCH
PORT 5
MII
MAN
A
G
E
MENT
MII I/O
SERIAL
PORT 1
SER
IAL
PO
RT
0
SER
IAL
PO
RT
2
TIMER 2
TIM
E
R 0
TIM
E
R 1
TIM
E
R 3
CAN 0
CONTROLLE
R
CAN
SRA
M
256 x
8
BUFFER
CONTROL U
N
IT
AC
C
U
M
U
LATO
R
PORT L
A
TCH
PO
RT
4
OSCIL
L
A
TOR
PO
RT
2
PORT L
A
TCH
PORT 0
1-WIRE
CONTROLLER
PORT LATCH
SRA
M
9kk x 8
V
CC
PO
W
E
R
MONITOR
RES
E
T
CONTROL
OS
CI
LLA
TOR-
FAIL
D
E
T
E
C
T
PSW
STAC
K
PO
IN
T
E
R
SFR
s/ SR
A
M
256 x
8
IN
TER
R
U
P
T
LOGI
C
MATH
A
CCE
LE
R
A
T
O
R
TIM
E
D
A
CCE
SS
DPTR0 DPTR1 DPTR2 DPTR3
PROGRAM
COUNTER
ONE
’S
COM
P
.
A
D
DE
R
INTRUCTION
REGISTER
BOOT
ROM
64k x
8
W
A
TC
HDOG
P6.0
–P
6.7
P4.0
– 4.
7
P2.0
–P
2.7
P7.0
–P
7.7
P3.0
–P
3.7
P5.0–P5.7
P1.0–P1.7
P0.0–P0.7
CLOCK AND
MEMO
R
Y
CONTROL
MDC
MDIO
MII I/O
(1
5)
B
