Z0220112VSGR3470 Zilog, Z0220112VSGR3470 Datasheet - Page 35

• Manufacturer Part Number: Z0220112VSGR3470
• Description: IC MODEM 2400BPS DSP AFE 44-PLCC
• Manufacturer: Zilog

Specifications of Z0220112VSGR3470

• Data Format: V.21, V.22, V.23, Bell 103, Bell 212A
• Baud Rates: 2.4k
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 44-LCC (J-Lead)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PS000904-0107
2. Write the lower 8 bits of the address of the data pump RAM location to register
3. With one write operation to register R4, set the high bit of the data pump RAM
4. Wait until the data pump sets R4, bit
To read from data pump RAM:
1. Write the lower 8 bits of the address of the data pump RAM location to register
2. With one write operation to register R4, set the high bit of the data pump RAM
3. Wait until RAMRQ is reset to
4. Read data from RAMDL and RAMDH.
Reads and writes to the data pump RAM may require 105
RAMAL.
address in R4, RAMAH, set R4, bit
(RAMRQ) to
RAMAL.
address in R4, RAMAH, set R4, bit
(RAMRQ) to
1
1
.
.
0
by the data pump or until RAMIE is set to
V.22BIS Data Pump with Integrated AFE
2
2
1
(RAMRW) to
(RAMRW) to
(RAMRQ) to
1
0
0
, and set R4, bit
, and set R4, bit
.
μ
s to complete.
1
1
1
.
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