MC68HC58 Motorola, MC68HC58 Datasheet - Page 21

• Manufacturer Part Number: MC68HC58
• Description: Data Link Controller
• Manufacturer: Motorola

2.1.2 Example DLC Parallel Mode System
MC68HC58
TECHNICAL DATA
Figure 2-2 shows a typical DLC circuit (PLCC). The component values displayed are
recommended, although adjustment may be required in actual operation. The exam-
ple is shown wired for low-power standby mode. Typical M68HC11 MCU connections
are shown, but any host MCU that has appropriate inputs and outputs compatible with
DLC signals can be used.
HC11
RESET
CSIO
R/W
IRQ
D7
D6
D5
D4
D3
D2
D1
D0
A0
E
ADDRESS
LINE(S)
DECODER
ADDRESS
Figure 2-2 DLC Parallel Mode Circuit
10 k
10 k
SIGNAL AND PIN DESCRIPTIONS
10
11
30 pF
5
6
7
8
9
0.1 F
RST
CS
ECLK
ADDR0
R/W
INT
V
DD
RESONATOR
CERAMIC
4.00 MHz
(TOP VIEW)
30 pF
28-PIN
PLCC
DLC
DATA0
PSEN
V
LOAD
V
BATT
BUS
24.9 k , 1%
V
SSD
CC
25
24
23
22
21
20
19
V
CC
DLC APPLICATION
FIRST NODE
ALL OTHERS
0.1 F
V
CC
0.1 F
R1
POWER
SUPPLY
10.6 k
1.5 k
GND
+5V
DECOUPLING
PROTECTION
47 H
TRANSIENT
R1
L1
C1
3300 pF
VIGIN
470 pF
C1
DLC PARALLEL MODE CIRCUIT
IGNITION
GND
BATTERY
CLASS 2 BUS
MOTOROLA
CONNECTOR
(J1850)
2-5