mfr4300 Freescale Semiconductor, Inc, mfr4300 Datasheet - Page 39

• Manufacturer Part Number: mfr4300
• Description: Flexray Communication Controllers
• Manufacturer: Freescale Semiconductor, Inc

2.4.3
2.4.3.1
A[6:1]/XADDR[14:19] are general purpose input pins. Their function is selected by the IF_SEL[1:0] pins.
Refer to
or disable either pullup or pulldown resistors on the pins. (See
Pullup/pulldown Enable Register
Control Register
A[6:1] are AMI interface address signals. A1 is the LSB of the AMI address bus.
XADDR[14:19] are HCS12 interface expanded address lines. XADDR14 is the LSB of the HCS12
interface expanded address lines.
2.4.3.2
A[9:7] are general purpose input pins. Their function is selected by the IF_SEL[1:0] pins. Refer to
Section 2.7, “External Host
disable either pullup or pulldown resistors on the pins.
A[9:7] are AMI interface address signals.
2.4.3.3
OE#/ACS0 is a general purpose input pin. Its function is selected by the IF_SEL[1:0] pins. Refer to
Section 2.7, “External Host
disable either a pullup or pulldown resistor on the pin.
OE# is the AMI interface output enable signal. This signal controls MFR4300 data output and the state of
three-stated data pins D[15:0] during host read operations.
ACS0 is an HCS12 interface address select signal.
2.4.3.4
A[12:11]/ACS[2:1] are general purpose input pins. Their function is selected by the IF_SEL[1:0] pins.
Refer to
or disable either pullup or pulldown resistors on the pins.
A[12:11] are AMI interface address signals.
ACS[1:2] are HCS12 interface address select signals.
2.4.3.5
BSEL[1:0]#/DBG[0:1] are general purpose input or output pins. Their function is selected by the
IF_SEL[1:0] pins. Refer to
Freescale Semiconductor
Section 2.7, “External Host
Section 2.7, “External Host
Detailed Signal Descriptions
A[6:1]/XADDR[14:19] — AMI Address Bus, HCS12 Expanded Address
Inputs
A[9:7] — AMI Address Bus
OE#/ACS0 — AMI Read Output Enable, HCS12 Address Select Input
A[12:11]/ACS[2:1] — AMI Address Bus, HCS12 Expanded Address Inputs
BSEL[1:0]#/DBG[0:1] — AMI Byte Select, Debug Strobe Points
(HIPPCR)”.)
Section 2.7, “External Host
Interface” for more information. The pins can be configured to enable or
Interface” for more information. The pin can be configured to enable or
(HIPPER)” and
Interface” for more information. The pins can be configured to enable
Interface” for more information. The pins can be configured to enable
MFR4300 Data Sheet, Rev. 3
Section 4.3.1.6, “Host Interface Pins Pullup/pulldown
Interface” for more information. The pins can be
Section 4.3.1.5, “Host Interface Pins
Device Overview
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