- 您现在的位置：买卖IC网 > PDF目录24802 > 935261296518 (NXP SEMICONDUCTORS) 4 CHANNEL(S), 500K bps, SERIAL COMM CONTROLLER, PQCC68 PDF资料下载
参数资料
| 型号： | 935261296518 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4 CHANNEL(S), 500K bps, SERIAL COMM CONTROLLER, PQCC68 |
| 封装： | PEDESTAL, PLASTIC, MO-047, SOT-188-3, LCC-68 |
| 文件页数： | 18/52页 |
| 文件大小： | 303K |
| 代理商： | 935261296518 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页当前第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页
Philips Semiconductors
Product specification
SC28L194
Quad UART for 3.3V and 5V supply voltage
2001 Feb 13
25
Table 22.
XISR - Xon-Xoff Interrupt Status Register
See MR0 for a description of enabling these functions
Bits 7:6
Bits 5:4
Bits 3:2
Bits 1:0
Received X Character
Status
Automatic X Character
transmission status
TxD flow status
TxD character status
00 - none
01 - Xoff received
10 - Xon received
11 - both received
00 - none
01 - Xon transmitted
10 - Xoff transmitted
11 - Illegal, does not occur
00 - normal
01 - TxD halt pending
10 - re-enabled
11 - flow disabled
00 - normal TxD data
01 - wait on normal data
10 - Xoff in pending
11 - Xon in pending
NOTE: Bits of this register may be cleared by a read of the register.
XISR[7:6] - Received X Character Status. This field can be read to
determine if the receiver has encountered an Xon or Xoff character
in the incoming data stream. These bits are maintained until a read
of the XISR. The field is updated by X character reception
regardless of the state of MR0(7, 3:2) or IMR(4). The field can
therefore be used as a character detector for the bit patterns stored
in the Xon and Xoff Character Registers.
XISR[5:4] - Automatic transmission Status. This field indicates the
last flow control character sent in the Auto Receiver flow control
mode. If Auto Receiver mode has not been enabled, this field will
always read b’00. It will likewise reset to b’00 if MR0(3) is reset. If
the Auto Receiver mode is exited while this field reads b’10, it is the
user’s responsibility to transmit an Xon, when appropriate.
XISR[3:2] - TxD flow Status. This field tracks the transmitter’s flow
status as follows:
00 - normal. The flow control is under host control.
01 - TxD halt pending. After the current character finishes the
transmitter will stop. The status will then change to b’00.
10 - re-enabled. The transmitter had been halted and restarted. It
is sending data characters. After a read of the XISR, it will return
to “normal” status.
11 - disabled. The transmitter is flow controlled.
XISR[1:0] - TxD character Status. This field allows determination of
the type of character being transmitted. If XISR(1:0) is b’01, the
channel is waiting for a data character to transfer from the TxFIFO.
This condition will only occur for a bit time after an Xon or Xoff
character transmission unless the TxFIFO is empty.
Table 23.
WDTRCR - Watch-dog Run Control
Register
Bits 7:4
Bit 3
Bit 2
Bit 1
Bit 0
WDT d
WDT c
WDT b
WDT a
Reserved
1 on
0 off
1 on
0 off
1 on
0 off
1 on
0 off
This register enables the watch-dog Timer for each of the 4
receivers on the Quad UART
Table 24.
BRGTRU
- BRG Timer Reload
Registers, Upper (Timers A & B)
Bits 7:0
8 MSB of the BRG Timer divisor.
This is the upper byte of the 16 bit value used by the BRG timer in
generating a baud rate clock
Table 25.
BRGTRL
- BRG Timer Reload
Registers, Lower (Timers A & B)
Bits 7:0
8 LSB of the BRG Timer divisor.
This is the lower byte of the 16 bit value used by the BRG timer in
generating a baud rate clock.
相关PDF资料 |
PDF描述 |
|---|---|
| 0737-0-00-15-00-00-03-0 | BRASS, GOLD FINISH, PCB TERMINAL |
| 935261430551 | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP64 |
| 935261430557 | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP64 |
| 935262073518 | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP44 |
| 935263779557 | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 935262025112 | 制造商:NXP Semiconductors 功能描述:SUB ONLY IC |
| 935262217118 | 制造商:NXP Semiconductors 功能描述:Real Time Clock Serial 8-Pin SO T/R |
| 935264217557 | 制造商:NXP Semiconductors 功能描述:SUB ONLY IC |
| 935267356112 | 制造商:NXP Semiconductors 功能描述:IC TEA1507PN |
| 935268081112 | 制造商:NXP Semiconductors 功能描述:SUB ONLY IC |
发布紧急采购，3分钟左右您将得到回复。