MM908E624ACEW/R2 FREESCALE [Freescale Semiconductor, Inc], MM908E624ACEW/R2 Datasheet - Page 32

• Manufacturer Part Number: MM908E624ACEW/R2
• Description: Integrated Triple High Side Switch with Embedded MCU and LIN Serial Communicationfor Relay Drivers
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

PCB Level Programming
possible to separately power the MCU with +5.0 V, the whole
necessary setups.
Table 14. Monitor Mode Signal Requirements and Options
32
908E624
TYPICAL APPLICATIONS
Notes
Monitor
Monitor
RS232
Normal
Forced
Mode
32.
33.
34.
35.
36.
2
3
5
DB-9
User
If the IC is soldered onto the PCB board it is typically not
Table 14
PTA0 must have a pullup resistor to V
External clock is a 4.9152 MHz, 9.8304 MHz or 19.6608 MHz canned oscillator on OCS1.
Communication speed with external clock is depending on external clock value. Baud rate is bus frequency / 256.
X = don’t care.
V
TST
1µF
1µF
V
GND
IRQ RST WDCONF
V
V
TST
DD
DD
summarizes the possible configurations and the
is a high voltage V
+
+
V
V
V
1
3
4
5
7
8
DD
DD
DD
C1+
C1-
C2+
C2-
T2
R2
OUT
IN
MAX232
GND
GND
R
EXT
R2
DD
GND
V
T2
OUT
V+
V-
CC
IN
+ 3.5 V
(not blank)
not $FFFF
16
15
2
6
10
9
Vector
Reset
$FFFF
(blank)
V
2
X
74HC125
DD
+
+
1
1µF
1µF
≤
V
DD
3
Communication
TST
PTA0
Figure 19. Normal Monitor Mode Circuit
+
in monitor mode.
1µF
6
1
1
X
74HC125
≤
V
SUP
Serial
V
4
DD
5
PTA1
+ 4.5 V.
0
0
X
V
DD
10k
PTB3
Selection
X
X
0
Mode
47µF
V
PTB4
system has to be powered up providing V
Figure
TST
9.8304MHz CLOCK
+
X
X
1
100nF
19).
ICG
OFF
OFF
ON
ON
2.2k
DATA
CLK
disabled
disabled
disabled
enabled
COP
VSUP[1:2]
GND
RST
RST_A
IRQ
IRQ_A
PTC4/OSC1
PTA0/KBD0
Analog Integrated Circuit Device Data
Request
Timeout
Normal
disabled
disabled
disabled
enabled
MM908E624
External
Clock
9.8304
9.8304
MHz
MHz
Freescale Semiconductor
Communication Speed
PTA1/KBD1
—
—
PTB4/AD4
PTB3/AD3
WDCONF
VREFH
VREFL
AGND
VDDA
EVDD
VSSA
EVSS
VDD
SUP
Frequenc
Nominal
Nominal
1.6MHz
1.6MHz
2.4576
2.4576
Bus
MHz
MHz
100nF
y
(see
10k
10k
10k
V
DD
Nominal
Nominal
Baud
Rate
9600
9600
6300
6300
V
4.7µF
DD