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参数资料
| 型号： | DS21Q58 |
| 英文描述： | E1 Quad Transceiver |
| 中文描述： | E1四收发器 |
| 文件页数： | 18/74页 |
| 文件大小： | 647K |
| 代理商： | DS21Q58 |
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DS21Q58 E1 Quad Transceiver
18 of 74
8.1 Power-Up Sequence
On power-up and after the supplies are stable, the DS21Q58 should be configured for operation by writing to all the
internal registers (this includes setting the test register to 00h) since the contents of the internal registers cannot be
predicted on power-up. The LIRST (CCR5.4) should be toggled from 0 to 1 to reset the line interface circuitry. (It
takes the device about 40ms to recover from the LIRST bit being toggled.) After the SYSCLK input is stable, the
ESR bits (CCR4.5 and CCR4.6) should be toggled from 0 to 1 (this step can be skipped if the elastic store is
disabled).
Register Name:
RCR
Register Description:
Receive Control Register
Register Address:
10 Hex
Bit #
7
6
5
4
Name
RSMF
RSM
RSIO
RESE
NAME
BIT
RSYNC Multiframe Function.
Only used if the RSYNC pin is programmed in the
multiframe mode (RCR.6 = 1).
0 = RSYNC outputs CAS multiframe boundaries.
1 = RSYNC outputs CRC4 multiframe boundaries.
RSYNC Mode Select
0 = frame mode (see the timing diagrams in Section
24.1
)
1 = multiframe mode (see the timing diagrams in Section
24.1
)
RSYNC I/O Select.
(Note: This bit must be set to 0 when RCR .4 = 0.)
0 = RSYNC is an output (depends on RCR.6)
1 = RSYNC is an input (only valid if elastic store enabled)
Receive Elastic Store Enable
0 = elastic store is bypassed
1 = elastic store is enabled
—
3
Unused.
Should be set = 0 for proper operation.
Frame Resync Criteria
0 = resync if FAS received in error three consecutive times
1 = resync if FAS or bit 2 of non-FAS is received in error three consecutive times
Sync Enable
0 = auto resync enabled
1 = auto resync disabled
Resync.
When toggled from low to high, a resync is initiated. Must be cleared and
set again for a subsequent resync.
3
—
2
1
0
FRC
SYNCE
RESYNC
FUNCTION
RSMF
7
RSM
6
RSIO
5
RESE
4
FRC
2
SYNCE
1
RESYNC
0
相关PDF资料 |
PDF描述 |
|---|---|
| DS21Q58L | E1 Quad Transceiver |
| DS21Q58LN | E1 Quad Transceiver |
| DS21Q58 | Dallas Semiconductor |
| DS2227-70 | Flexible NV SRAM Stik |
| DS2227-100 | Flexible NV SRAM Stik |
相关代理商/技术参数 |
参数描述 |
|---|---|
| DS21Q58L | 功能描述:网络控制器与处理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q58L+ | 功能描述:网络控制器与处理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q58LN | 功能描述:网络控制器与处理器 IC RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q58LN+ | 功能描述:网络控制器与处理器 IC Quad E1 Transceiver RoHS:否 制造商:Micrel 产品:Controller Area Network (CAN) 收发器数量: 数据速率: 电源电流（最大值）:595 mA 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PBGA-400 封装:Tray |
| DS21Q59 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:RELIABILITY REPORT FOR DS21Q59, REV A2 |
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