Motore di ricerca datesheet componenti elettronici |
|
FDC37C669-MT Scheda tecnica(PDF) 9 Page - Microchip Technology |
|
FDC37C669-MT Scheda tecnica(HTML) 9 Page - Microchip Technology |
9 / 162 page 9 DESCRIPTION OF PIN FUNCTIONS QFP/ TQFP PIN NO. NAME SYMBOL BUFFER TYPE DESCRIPTION 81,91 nRequest to Send (System Option) nRTS1 nRTS2 (SYSOPT) O4 Active low Request to Send outputs for the Serial Port. Handshake output signal notifies modem that the UART is ready to transmit data. This signal can be programmed by writing to bit 1 of Modem Control Register (MCR). The hardware reset will reset the nRTS signal to inactive mode (high). Forced inactive during loop mode operation. At the trailing edge of hardware reset, the nRTS2 input is latched to determine the configuration base address. 0 : INDEX Base I/O Address = 3F0 Hex 1 : INDEX Base I/O Address = 370 Hex 83,93 nData Terminal Ready nDTR1 nDTR2 O4 Active low Data Terminal Ready outputs for the serial port. Handshake output signal notifies modem that the UART is ready to establish data communication link. This signal can be programmed by writing to bit 0 of Modem Control Register (MCR). The hardware reset will reset the nDTR signal to inactive mode (high). Forced inactive during loop mode operation. 82,92 nClear to Send nCTS1 nCTS2 I Active low Clear to Send inputs for the serial port. Handshake signal which notifies the UART that the modem is ready to receive data. The CPU can monitor the status of nCTS signal by reading bit 4 of Modem Status Register (MSR). A nCTS signal state change from low to high after the last MSR read will set MSR bit 0 to a 1. If bit 3 of Interrupt Enable Register is set, the interrupt is generated when nCTS changes state. The nCTS signal has no effect on the transmitter. Note: Bit 4 of MSR is the complement of nCTS. |
Codice articolo simile - FDC37C669-MT |
|
Descrizione simile - FDC37C669-MT |
|
|
Link URL |
Privacy Policy |
ALLDATASHEETIT.COM |
Lei ha avuto il aiuto da alldatasheet? [ DONATE ] |
Di alldatasheet | Richest di pubblicita | contatti | Privacy Policy | scambio Link | Ricerca produttore All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |