z02201 ZiLOG Semiconductor, z02201 Datasheet - Page 48

• Manufacturer Part Number: z02201
• Description: Z02201 V.22bis Data Pump With Integrated Afe
• Manufacturer: ZiLOG Semiconductor

Table 20. Modem Data Pump Word Definitions (Continued)
PS000904-0107
Register & Address
(hex)
Default
Value
Function and Explanation
This register represents the upper and lower thresholds of the
received telephone line energy. If Reg5, bit 1 (CDET) to 1, and the
telephone line energy falls below RLSDOffThresh, the data pump
sets Reg5, bit 1 (CDET) to 0. If Reg5, bit 1 (CDET) is 1 and the
telephone line energy rises above RLSDOnThresh the data pump
sets Reg5, bit 1 (CDET) to 1. These thresholds stabilize Reg5, bit 1
(CDET) by hysteresis when RLSDOffThresh is set to a lower value
than RLSDOnThresh. Use the following formula when thresh is
specified in dBm and is less or equal to 0:
The data pump sets this location to its default value at any reset.
Changes in value take effect after the next baud period.
RLSDval
V.22BIS Data Pump with Integrated AFE
=
10
(
power
) 20
⁄
30 32767
(
)
44