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Device Overview
MFR4200 Data Sheet, Rev. 0
34
Freescale Semiconductor
62
D8
PAD7
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
61
D7
PAD8
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
58
D6
PAD9
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
57
D5
PAD10
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
56
D4
PAD11
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
55
D3
PAD12
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
51
D2
PAD13
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
40
D1
PAD14
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus.
39
D0
PAD15
-
VDDX
I/O
Z/DC/PC
Z
AMI data bus / HCS12 multiplexed address/data
bus. D0 is the LSB of the AMI data bus
29
CE#
LSTRB
-
VDDX
I
PC
-
AMI chip select signal / HCS12 low-byte strobe
signal
30
WE#
RW_CC#
-
VDDX
I
PC
-
AMI write enable signal/ HCS12 read/write
select signal
52
ECLK_CC
-
-
VDDX
I
PC
-
HCS12 clock input
Physical Layer Interface
32
BGT
DBG2
IF_SEL0
VDDX
I/O
DC/PD
-
Bus Guardian Tick / Debug strobe point signal
2/Host interface selection 0
48
MT
CLK_S1
-
VDDX
I/O
DC/PD
-
Bus Guardian Macrotick/Controller clock output
select signal 1
47
ARM
DBG1
CLK_S0
VDDX
I/O
DC/PD
-
Bus Guardian ARM signal / Debug strobe point
signal1/Controller clock output select signal 0
33
RXD_BG1
RXD2_485
-
VDDX
I
PC
-
PHY Data receiver input / RS485 Data receiver
input
43
RXD_BG2
RXD2_485
-
VDDX
I
PC
-
PHY Data receiver input / RS485 Data receiver
input
36
TXEN1#
TXE1_485#
-
VDDX
O
DC
1
Transmit enable for PHY / Transmit enable for
RS485
44
TXEN2#
TXE2_485#
-
VDDX
O
DC
1
Transmit enable for PHY / Transmit enable for
RS485
Table 2-7. Pin Functions and Signal Properties (continued)
Pin
N
Pin
1
Function1
Pin
1
Function2
Pin
1
Function3
Powered
by
In/
Out
Pin
type
2,3
Re
set
Functional Description