Z0221524ASGR50A5 Zilog, Z0221524ASGR50A5 Datasheet - Page 47

• Manufacturer Part Number: Z0221524ASGR50A5
• Description: IC MODEM CONTROLLER 44-LQFP
• Manufacturer: Zilog

Specifications of Z0221524ASGR50A5

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

PS001907-0904
Register Range
S90
0–255
Table 7. Modem S-Registers (Continued)
Default
0x3F
Single Chip Modem with Integrated Controller, Data Pump, and AFE
Units
Description
PttBitmap (0)
Bit 0: PTT_ALLOW_ABCD, set to allow A, B, C, and D DTMF
tones to be issued (ADT).
Bit 1: PTT_ALLOW_PULSE, set to allow pulse dialing
(ATDP).
Bit 2: PTT_ALLOW_ATH1, set to allow the modem to go off-
hook but not handshake (ATH1).
Bit 3: ALLOW_BUSY_DISABLE, set to allow busy detection
to be disabled (ATX).
Bit 4: ALLOW_BLIND_DIAL, set to allow the dial tone
detection to be disabled, that is, to allow blind dialing (ATX).
Bit 5: USE_AP_CMD, set to allow the pulse dial make/break
ration to be set (AT&P).
Bit 6: DISABLE_P_AFTER_T, set to disable pulse dialing
after tone dialing (no ATDT12P12).
Bit 7: LINE_SENSE_ENABLE, set to enable line current
sensing before taking the modem off-hook (ATA, ATD, auto-
answer)
Modem S-Registers
Z02215
41