mm908e622 Freescale Semiconductor, Inc, mm908e622 Datasheet - Page 56

• Manufacturer Part Number: mm908e622
• Description: Mm908e622 Integrated Quad Half-bridge, Triple High-side And Ec Glass Driver With Embedded Mcu And Lin For High End Mirror
• Manufacturer: Freescale Semiconductor, Inc

PCB level programming
possible to separately power the MCU with +5V. The whole
necessary setups.
56
908E622
Typical Applications
Notes
RS232
Monitor
Monitor
Normal
Forced
2
3
5
Mode
DB-9
User
If the IC is soldered onto the pcb board, its typically not
Table
1.
2.
3.
4.
5.
PTA0 must have a pullup resistor to V
External clock is a 4.9152MHz, 9.8304MHz or 19.6608MHz 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
22
1µF
1µF
V
GND
IRQ RST
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
TESTMODE
MAX232
1
1
0
R2
DD
GND
V
T2
OUT
V+
V-
CC
IN
+ 3.5V
(not blank)
not $FFFF
16
15
2
6
10
9
Vector
Reset
$FFFF
(blank)
V
2
74HC125
X
DD
+
+
Table 22. Monitor Mode Signal Requirements and Options
1
1µF
≤
1µF
V
3
DD
TST
Communication
+
Figure 33. Normal Monitor Mode Circuit
PTA0
1µF
in monitor mode
6
1
1
X
≤
74HC125
V
SUP
Serial
V
4
DD
5
PTA1
+ 4.5V
0
0
X
V
DD
10k
PTB3
Selection
X
X
0
47µF
Mode
V
PTB4
system has to be powered up providing V
Figure
TST
9.8304MHz CLOCK
+
X
X
1
100nF
33)..
ICG
OFF
OFF
ON
ON
DATA
CLK
disabled
disabled
disabled
enabled
COP
VSUP[1:8]
GND[1:4]
RST
RST_A
IRQ
IRQ_A
PTC4/OSC1
PTA0/KBD0
Time-out
Analog Integrated Circuit Device Data
Request
Normal
disabled
disabled
disabled
enabled
MM908E622
External
Clock
9.8304
9.8304
VDDA/VREFH
VSSA/VREFL
MHz
MHz
Freescale Semiconductor
TESTMODE
Communication Speed
PTA1/KBD1
—
—
PTB4/AD4
PTB3/AD3
EVDD
EVSS
VDD
VSS
SUP
Frequency
Nominal
Nominal
1.6MHz
1.6MHz
2.4576
2.4576
MHz
MHz
Bus
100nF
(see
10k
10k
10k
10k
V
DD
Nominal
Nominal
Baud
V
Rate
9600
9600
6300
6300
DD
4.7µF