MM912H634CV1AE Freescale Semiconductor, MM912H634CV1AE Datasheet - Page 11

• Manufacturer Part Number: MM912H634CV1AE
• Description: 64KS12 LIN2xLS/HS Isense
• Manufacturer: Freescale Semiconductor
• Series: -r

Specifications of MM912H634CV1AE

• Applications: Automotive
• Core Processor: HCS12
• Program Memory Type: FLASH (64 kB)
• Controller Series: HCS12
• Ram Size: 6K x 8
• Interface: LIN
• Number Of I /o: -
• Voltage - Supply: 5.5 V ~ 27 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 48-LQFP Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

2.2
This section describes the external MCU signals. It includes a table of signal properties.
Freescale Semiconductor
Pin #
Function 1
37
38
39
40
41
42
43
44
45
46
47
48
RESET
BKGD
Name
TEST
PE0
PE1
PA7
Pin
MCU Die Signal Properties
Pin Name
RESET_A
ISENSEH
ISENSEL
TEST_A
RESET
PGND
BKGD
TCLK
LS1
LS2
PA7
NC
Function 2
EXTAL
MODC
Name
XTAL
Pin
—
—
—
MCU Background Debug
Current Sense Pin H
Current Sense Pin L
Low Side Output 1
Power Ground Pin
Low Side Output 2
Test Clock Input
Not connected
Formal Name
MCU Reset
Test Mode
and Mode
MCU PA7
Reset I/O
VDDRX
VDDRX
VDDRX
Supply
VD
Power
V
N.A.
DDRX
DRX
Table 4. MM912_634 Pin Description
Table 5. Signal Properties Summary
MM912_634 Advance Information, Rev. 4.0
Low Side output 1 used to drive small inductive loads like relays. The output is
short-circuit protected, includes active clamp circuitry and can be also controlled by
the PWM module.
See
This pin is the device Low Side Ground connection. DGND, LGND and AGND are
internally connected to PGND via a back to back diode.
Low Side output 2 used to drive small inductive loads like relays. The output is
short-circuit protected, includes active clamp circuitry and can be also controlled by
the PWM module.
See
Current Sense differential input “Low”. This pin is used in combination with
ISENSEH to measure the voltage drop across a shunt resistor. See
“Current Sense Module -
device configurations.
Current Sense differential input “High”. This pin is used in combination with
ISENSEL to measure the voltage drop across a shunt resistor.
“Current Sense Module -
device configurations.
This pin is reserved for alternative function and should be left floating.
Analog die Test Mode pin for Test Mode only. This pin must be grounded in user
mode!
Test Mode Clock Input pin for Test Mode only. The pin can be used to disable the
internal watchdog for development purpose in user mode. See
“Window
Bidirectional Reset I/O pin of the analog die. Active low signal. Internal pull-up. V
based. See
The RESET pin is an active low bidirectional control signal. It acts as an input to
initialize the MCU to a known start-up state, and an output when an internal MCU
function causes a reset. The RESET pin has an internal pull-up device to EVDDX.
The BKGD/MODC pin is used as a pseudo-open-drain pin for the background
debug communication. It is used as MCU operating mode select pin during reset.
The state of this pin is latched to the MODC bit at the rising edge of RESET. The
BKGD pin has a pull-up device.
General purpose port A input or output pin 7. See
Module (S12IPIMV1)
Section 4.13, “Low Side Drivers - LSx
Section 4.13, “Low Side Drivers - LSx
Watchdog. The pin is recommended to be grounded in user mode.
OSCPINS_EN
OSCPINS_EN
RESET pin
Section 4.8,
PUPEE/
PUPBE/
BKPUE
CTRL
NA
Internal Pull
Resistor
PULLUP
“Resets. To be externally connected to the RESET pin.
ISENSE. Note: This pin function is not available on all
ISENSE. Note: This pin function is not available on all
Description
DOWN
DOWN
DOWN
Reset
State
UP
NA
Section 4.28, “Port Integration
Port E I/O, Oscillator pin
Port E I/O, Oscillator pin
Background debug
External reset
Description
Port A I/O
Test input
Section 4.21,
Section 4.10,
Pin Assignment
Section 4.21,
DDX
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