ml7033 Oki Semiconductor, ml7033 Datasheet - Page 22

• Manufacturer Part Number: ml7033
• Description: Dual-channel Line Card Codec
• Manufacturer: Oki Semiconductor

BSEL1, BSEL2
The BSELn pin is the battery mode selection data output. This pin is used when the SLIC connected to the
corresponding channel is an Intersil RSLIC
mode, and the logic “1” selects the high battery mode within the SLIC device. The output levels from the BSELn
pins are determined by the BSELn register bits (CR6-B3/CR13-B3).
By connecting these outputs directly to the corresponding SLIC device input pins, battery mode selection of the
SLIC is possible. This pin remains functional even in power-down mode.
SWC1, SWC2
The SWCn pin is the uncommitted switch control data output. This pin is used when the SLIC connected to the
corresponding channel is an Intersil RSLIC
corresponding input pin of the SLIC device, the uncommitted switch control can be made. The uncommitted
switch is located between the SW+ pin and the SW- pin. A logic “0” on this pin enables the SLIC internal switch
on, and a logic “1” disables the switch.
The output levels from the SWC1 and SWC2 pins are determined by the SWCn register bits (CR6-B4/CR13-
B4). This pin remains functional even in power-down mode with the PDN pin is a logic “0”.
DET1, DET2
The DETn pins are the SLIC’s detection signal (switch hook, ring trip or ground key detection) inputs. These
pins are used when the SLIC connected to the corresponding channel is an Intersil RSLIC
logic “0” on this pin clears the corresponding DETn register bit (CR6-B1/CR13-B1). A logic ‘1’ on this pin
input sets the register bit.
The Intersil RSLIC
logic “1” state to a logic “0” state when it detects an assigned event of either off-hook, ring trip or ground key.
Therefore, by connecting these pins to the corresponding pins on the SLIC device and reading the DETn register
bit (CR6-B1/CR13-B1), the occurrence of an assigned event can be detected.
1 Semiconductor
SHD: Switch Hook Detection RTD: Ring Trip Detection GKD:Ground Key Detection
Low Power Standby
Forward Active
Unbalanced Ringing
Reverse Active
Ringing
Forward Loop Back
Tip Open
Power Denial
Operating Mode
TM
series SLIC device is equipped with a function to switch the output on its DET pin from a
Table 6 SLIC Device Operation Mode and Detector Mode
F2_n
0
0
0
0
1
1
1
1
F1_n
1
0
0
1
0
0
1
1
TM
F0_n
series SLIC device. A logic “0” on this pin selects the low battery
TM
0
1
0
1
0
1
0
1
series SLIC device. By connecting this pin directly to the
E0_n = 1
SHD
SHD
SHD
SHD
SHD
RTD
RTD
n/a
E0_n = 0
GKD
GKD
GKD
GKD
GKD
RTD
RTD
n/a
Forward battery loop feed
Unbalanced ringing mode
Reverse battery loop feed
Balanced ringing mode
For PBX type application
Device shutdown
Standby mode
Test mode
Description
TM
series device. A
FEDL7033-02
ML7033
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