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参数资料
| 型号： | DS21372TN |
| 厂商： | DALLAS SEMICONDUCTOR |
| 元件分类： | Telecom IC:Other |
| 英文描述： | SPECIALTY TELECOM CIRCUIT, PQFP32 |
| 封装： | TQFP-32 |
| 文件页数： | 3/21页 |
| 文件大小： | 214K |
| 代理商： | DS21372TN |
DS21372
11 of 21
REPETITIVE PATTERN GENERATION (PCR.5=0) Table 5
PATTERN TYPE
PTR
PLR
PSR3
PSR2
PSR1
PSR0
TINV
RINV
all 1s
00
FF
0
all 0s
00
FF
FE
0
alternating 1s and 0s
00
01
FF
FE
0
double alternating 1s and 0s
00
03
FF
FC
0
3 in 24
00
17
FF
20
00
22
0
1 in 16
00
0F
FF
00
01
0
1 in 8
00
07
FF
01
0
1 in 4
00
03
FF
F1
0
D4 Line Loopback Activate
00
04
FF
F0
0
D4 Line Loopback Deactivate
00
02
FF
FC
0
Notes For Tables 4 And 5:
1. PTR = Polynomial Tap Register (address = 05)
2. PLR = Pattern Length Register (address = 04)
3. PSR3 = Pattern Set Register 3 (address = 00)
4. PSR2 = Pattern Set Register 2 (address = 01)
5. PSR1 = Pattern Set Register 1 (address = 02)
6. PSR0 = Pattern Set Register 0 (address = 03)
7. TINV = Transmit Data Inversion Select Bit (EIR.5)
8. RINV = Receive Data Inversion Select Bit (EIR.4)
9. For the 2
32 -1 pattern, the random pattern actually repeats every (4093 x 220) + 1046529 bits instead of
2
32 - 1.
8.
BIT COUNT REGISTERS
The Bit Count Registers (BCR3 to BCR0) comprise a 32-bit count of bits (actually RCLK cycles)
received at RDATA. BC31 is the MSB of the 32-bit count. The bit counter increments for each cycle of
RCLK when input pin RDIS is low. The bit counter is disabled during loss of SYNC. The Status Register
bit BCOF is set when this 32-bit register overflows. Upon an overflow condition, the user must clear the
BCR by either toggling the LC bit or pin. The DS21372 latches the bit count into the BCR registers and
clears the internal bit count when either the PCR.4 bit or the LC input pin toggles from low to high. The
bit count and bit error count (available via the BECRs) are used by an external processor to compute the
BER performance on a loop or channel basis.
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| DS21372TN+ | 功能描述:网络控制器与处理器 IC 3.3V Bit Error Rate Tester (BERT) 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 |
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| DS2141A | 功能描述:网络控制器与处理器 IC T1 Controller w/Elastic Store 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 |
| DS2141AN | 功能描述:网络控制器与处理器 IC T1 Controller w/Elastic Store 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 |
| DS2141AQ | 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 |
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