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XR68C92/192
23
Rev. 1.33
OP5 output select (Bit 5):
0 = Controlled by SOPR and ROPR (default)
1 = -RxBRDY which is the complement of ISR bit-5
OP6 output select (Bit 6):
0 = Controlled by SOPR and ROPR (default)
1 = -TxARDY which is the complement of ISR bit-0
OP7 output select (Bit 7):
0 = Controlled by SOPR and ROPR (default)
1 = -TxBRDY which is the complement of ISR bit-4
START COUNTER/TIMER REGISTER (STCR)
-
Read Only
Reading from this register will start the C/T. Data
values returned should be ignored.
STOP COUNTER/TIMER REGISTER (SPCR) -
Read Only
Reading from this register will stop the C/T. Data
values returned should be ignored.
SET
OUTPUT
PORT
REGISTER
(SOPR) -
Write Only
Output ports (OP0-OP7), when used as general pur-
pose outputs, can be asserted (set to low) by writing a
“1” to the corresponding bit in this register. Once an
output is asserted, it can be negated only by issuing a
command through the Reset Output Port Register (see
below).
However, note that SOPR and ROPR cannot be used
to assert and negate outputs that are programmed for
alternate functions (see description under OPCR). For
example, if OP0 is programmed to output -RTSA (see
'Configuring Multi-purpose Outputs), it cannot be con-
trolled by SOPR or ROPR. In that case, commands
from the Command Register should be issued to
assert (CRA bits 7:4 = 0x8) and negate (CRA bits 7:4
= 0x9) OP0.
SOPR Bit 0-7:
0 = No change (same state).
1 = Assert the corresponding output (Set it low).
RESET OUTPUT PORT REGISTER (ROPR) - Write
Only
Each output port bit can be changed to high state by
writing a “1” to each individual bit.
ROPR Bit 0-7:
0 = No change (same state).
1 = Negate the corresponding output (Set it high).
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| XR68C92CP | 制造商:EXAR 制造商全稱:EXAR 功能描述:DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER |
| XR68C92CP-F | 功能描述:UART 接口集成電路 Dual Channel UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
| XR68C92CV | 制造商:EXAR 制造商全稱:EXAR 功能描述:DUAL UNIVERSAL ASYNCHRONOUS RECEIVER AND TRANSMITTER |
| XR68C92CV-0A-EVB | 功能描述:界面開發(fā)工具 Supports 68C92 44 ld TQFP, ISA Interface RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| XR68C92CV-F | 功能描述:UART 接口集成電路 Dual Channel UART RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 數(shù)據(jù)速率:3 Mbps 電源電壓-最大:3.6 V 電源電壓-最小:2.7 V 電源電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LQFP-48 封裝:Reel |
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