CX28344 Conexant, CX28344 Datasheet - Page 43

• Manufacturer Part Number: CX28344
• Description: (CX2834x) Dual / Triple / Quad / Hex / Octal - Enhanced DS3 / E3 Framer
• Manufacturer: Conexant

CX28342/3/4/6/8 Data Sheet
Table 1-16. Microprocessor Interface (1 of 2)
28348-DSH-001-B
MOTO*
A_0
A_1
A_2
A_3
A_4
A_5
A_6
A_7
A_8
AD_0
AD_1
AD_2
AD_3
AD_4
AD_5
AD_6
AD_7
Pin Label
CX28346 Pin # CX28348 Pin #
T12
E11
E10
U13
T13
U14
T14
U15
T15
T16
R16
G5
E9
E8
E7
E5
E6
F5
Mindspeed Technologies™
U13
U14
U15
R16
T12
E11
E10
T13
T14
T15
T16
G5
E9
E8
E7
F5
E5
E6
IOPD
IOPD
IOPD
IOPD
IOPD
IOPD
IOPD
IOPD
IPD
IPD
IPD
IPD
IPD
IPD
IPD
IPD
IPD
I/O
I
Motorola Bus Mode
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
Address Bus
Data Bus or Address/
Data
Data Bus or Address/
Data
Data Bus or Address/
Data
Data Bus or Address/
Data
Data Bus or Address/
Data
Data Bus or Address/
Data
Data Bus or Address/
Data
Data Bus or Address/
Data
Signal Name
Selects Intel- or Motorola-style
microprocessor interface. DS*, R/
W*, A[8:0], and AD[7:0] functions
are affected.
0 = Motorola; AD[7:0] is data,
A[8:0] is address, DS* is data
strobe, and R/W* indicates read
(high) or write (low) data direction.
1 = Intel; AD[7:0] is multiplexed
address/data, A[7:0] is ignored,
A[8] is address, DS* is read strobe
(RD*), and R/W* is write strobe
(WR*).
Address used to identify a register
for subsequent read/write data
transfer cycle. In Motorola bus
mode, all nine address bits (A[8:0])
are valid. In Intel bus mode, only
the upper bit (A[8]) is used.
Multiplexed address/data (Intel) or
data only (Motorola). Refer to
MOTO* definition.
Definition
Product Description
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