DS21458-W+ Maxim Integrated, DS21458-W+ Datasheet - Page 41

• Manufacturer Part Number: DS21458-W+
• Description: Network Controller & Processor ICs
• Manufacturer: Maxim Integrated

Specifications of DS21458-W+

• Product: Framer
• Number Of Transceivers: 4
• Data Rate: 64 Kbps
• Supply Current (max): 328 mA
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Package / Case: CSBGA
• Minimum Operating Temperature: 0 C
• Operating Supply Voltage: 3.3 V
• Supply Voltage - Max: 3.465 V
• Supply Voltage - Min: 3.135 V
• Part # Aliases: 90-21458+W00

6. PARALLEL PORT
The transceiver is controlled via either a nonmultiplexed (MUX = 0) or a multiplexed (MUX = 1) bus by
an external microcontroller or microprocessor. The transceiver can operate with either Intel or Motorola
bus timing configurations. If the BTS pin is tied low, Intel timing will be selected; if tied high, Motorola
timing will be selected. All Motorola bus signals are listed in parentheses (). See the timing diagrams in
the AC Electrical Characteristics for more details.
6.1 Register Map
Table 6-1. Register Map Sorted By Address
ADDRESS
0A
0B
0C
0D
1A
1B
1C
1D
0E
0F
1E
1F
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
Master Mode Register
I/O Configuration Register 1
I/O Configuration Register 2
T1 Receive Control Register 1
T1 Receive Control Register 2
T1 Transmit Control Register 1
T1 Transmit Control Register 2
T1 Common Control Register 1
Software Signaling Insertion Enable 1
Software Signaling Insertion Enable 2
Software Signaling Insertion Enable 3
Software Signaling Insertion Enable 4
T1 Receive Digital Milliwatt Enable Register 1
T1 Receive Digital Milliwatt Enable Register 2
T1 Receive Digital Milliwatt Enable Register 3
Device Identification Register
Information Register 1
Information Register 2
Information Register 3
—
Interrupt Information Register 1
Interrupt Information Register 2
Status Register 1
Interrupt Mask Register 1
Status Register 2
Interrupt Mask Register 2
Status Register 3
Interrupt Mask Register 3
Status Register 4
Interrupt Mask Register 4
Status Register 5
Interrupt Mask Register 5
Status Register 6
Interrupt Mask Register 6
Status Register 7
Interrupt Mask Register 7
Status Register 8
Interrupt Mask Register 8
Status Register 9
Interrupt Mask Register 9
Per-Channel Pointer Register
Per-Channel Data Register 1
REGISTER NAME
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DS21455/DS21458 Quad T1/E1/J1 Transceivers
ABBREVIATION
REGISTER
MSTRREG
T1RDMR1
T1RDMR2
T1RDMR3
T1RCR1
T1RCR2
T1TCR1
T1TCR2
T1CCR1
PCDR1
IOCR1
IOCR2
INFO1
INFO2
INFO3
SSIE1
SSIE2
SSIE3
SSIE4
IMR1
IMR2
IMR3
IMR4
IMR5
IMR6
IMR7
IMR8
IMR9
PCPR
IIR1
IIR2
IDR
SR1
SR2
SR3
SR4
SR5
SR6
SR7
SR8
SR9
—
PAGE
104
104
105
105
170
171
172
118
118
150
151
150
151
125
126
190
191
49
78
79
53
53
55
56
57
61
61
61
72
62
69
—
51
51
72
73
74
75
76
77
46
47