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| 型號： | SI2401FS10-EVB |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 29/76頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL SI2401 UART INTERFACE |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ISOmodem® |
| 主要目的： | 電信，調(diào)制解調(diào)器 |
| 嵌入式： | 否 |
| 已用 IC / 零件： | SI2401 |
| 主要屬性： | 雙路 RJ-11 連接至電話線路，音頻連接器 |
| 次要屬性： | RS-232，TTL 串行和 USB 接口 |
| 已供物品： | 板，調(diào)制解調(diào)器，電源 |
| 相關(guān)產(chǎn)品： | 336-1095-ND - IC ISOMODEM SYSTEM-SIDE 16SOIC |
| 其它名稱： | 336-1167 |
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Si2401
Rev. 1.0
35
7. S Registers
Any register not documented here is reserved and should not be written. Bold selection in bit-mapped registers
indicates default values.
Table 21. S-Register Summary
“S”
Register
Address
(hex)
Name
Function
Reset
S00
0x00
NR
Number of rings before answer; 0 suppresses auto answer.
0x00
S01
0x01
DW
Number of seconds modem waits before dialing after going off-
hook (maximum of 109 seconds).
0x02
S02
0x02
CW
Number of seconds modem waits for a dial tone before hang-up
added to time specified by DW (maximum of 109 seconds).
0x03
S03
0x03
CLW
Duration that the modem waits (53.33 ms units) after loss of car-
rier before hanging up.
0x0E
S04
0x04
TD
Both duration and spacing (5/3 ms units) of DTMF dialed tones.
0x30
S05
0x05
OFFPD
Duration of off-hook time (5/3 ms units) for pulse dialing.
0x18
S06
0x06
ONPD
Duration of on-hook time (5/3 ms units) for pulse dialing.
0x24
S07
0x07
MF1
This is a bit-mapped register.*
0x06
S08
0x08
INTM
This is a bit-mapped register.*
0x00
S09
0x09
INTS
This is a bit-mapped register.*
0x00
S0C
0x0C
MF2
This is a bit-mapped register.*
0x00
S0D
0x0D
MF3
This is a bit-mapped register.*
0x00
S0E
0x0E
DIT
Pulse dialing Interdigit time (10 ms units added to a minimum
time of 64 ms).
0x46
S0F
0x0F
TEC
TIES escape character. Default = +.
0x2B
S10
0x10
TDT
TIES delay time (53.33 ms units).
0x13
S11
0x11
OFHI
This is a bit-mapped register.*
0x04
S12
0x12
ACL
Absolute Current Level. When S13[4] (OFHD) = 0b, ACL
represents the absolute current threshold used by the off-hook
intrusion algorithm (1 mA units.)
0x00
S13
0x13
MF4
This is a bit-mapped register.*
0x10
S15
0x15
MLC
This is a bit-mapped register.*
0x04
S16
0x16
BTON
Busy tone on. Time that the busy tone must be on (10 ms units)
for busy tone detector.
0x32
S17
0x17
BTOF
Busy tone off. Time that the busy tone must be off (10 ms units)
for busy tone detector.
0x32
*Note:
These registers are explained in detail in the following section.
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