Signal Descriptions
MFR4200 Data Sheet, Rev. 0
Freescale Semiconductor
33
Table 2-7. Pin Functions and Signal Properties
Pin
N
Pin
1
Function1
Pin
1
Function2
Pin
1
Function3
Powered
by
In/
Out
Pin
type
2,3
Re
set
Functional Description
Host Interface Pins
11
A1
XADDR19
-
VDDX
I
PC
-
AMI address bus / HCS12 expanded address
lines. A1= LSB of the AMI address bus.
12
A2
XADDR18
-
VDDX
I
PC
-
AMI address bus / HCS12 expanded address
lines.
13
A3
XADDR17
-
VDDX
I
PC
-
AMI address bus / HCS12 expanded address
lines.
14
A4
XADDR16
-
VDDX
I
PC
-
AMI address bus / HCS12 expanded address
lines.
15
A5
XADDR15
-
VDDX
I
PC
-
AMI address bus / HCS12 expanded address
lines.
17
A6
XADDR14
-
VDDX
I
PC
-
AMI address bus / HCS12 expanded address
lines. XADDR14 = LSB of the HCS12 expanded
address lines
18
A7
ACS0
-
VDDX
I
PC
-
AMI address bus / HCS12 address select
inputs.
21
A8
ACS1
-
VDDX
I
PC
-
AMI address bus / HCS12 address select
inputs.
22
A9
ACS2
-
VDDX
I
PC
-
AMI address bus / HCS12 address select
inputs.
27
OE#
4
ACS3
-
VDDX
I
PC
-
AMI read output enable signal / HCS12 address
select input.
28
ACS4
-
-
VDDX
I
PC
-
HCS12 address select inputs.
34
ACS5
-
-
VDDX
I
PC
-
HCS12 address select inputs. MSB of the
address select inputs.
10
D15
PAD0
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus. PAD0 is the LSB of the HCS12
address/data bus.
7
D14
PAD1
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
6
D13
PAD2
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
5
D12
PAD3
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
4
D11
PAD4
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
3
D10
PAD5
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
2
D9
PAD6
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.