COBHAM GR740 User Manual

GR740-UM-DS, Nov 2017, Version 1.7 34 www.cobham.com/gaisler
GR740
SPW_RXS_N[7:0] SpaceWire router ports 1 - 8, receive strobe,
negative
No In -
PCI_CLK PCI clock See 3.3.2 In -
PCI_GNT PCI grant See 3.3.2 In Low
PCI_IDSEL PCI Device select during configuration See 3.3.2 In High
PCI_HOSTN PCI System host. Low = Device will act as
PCI host
See 3.3.2 In Low
PCI_AD[31:0] PCI Address and Data bus See 3.3.2 BiDir High
PCI_CBE[3:0] PCI Bus command and byte enable See 3.3.2 BiDir Low
PCI_FRAME PCI Cycle frame See 3.3.2 BiDir Low
PCI_IRDY PCI Initiator ready See 3.3.2 BiDir Low
PCI_TRDY PCI Target ready See 3.3.2 BiDir Low
PCI_DEVSEL PCI Device select See 3.3.2 BiDir Low
PCI_STOP PCI Stop See 3.3.2 BiDir Low
PCI_PERR PCI Parity error See 3.3.2 BiDir Low
PCI_SERR PCI System error See 3.3.2 BiDir Low
PCI_PAR PCI Parity signal See 3.3.2 BiDir High
PCI_INTA PCI Interrupt A See 3.3.2 BiDir Low
PCI_INTB PCI Interrupt B See 3.3.2 In Low
PCI_INTC PCI Interrupt C See 3.3.2 In Low
PCI_INTD PCI Interrupt D See 3.3.2 In Low
PCI_REQ PCI Request signal See 3.3.2 Out Low
PCI_M66EN PCI 66 MHz enable signal See 3.3.2 In High
PROM_CEN[1:0] PROM chip select See 3.3.1 Out Low
PROMIO_ADDR[27:0] PROM/IO address See 3.3.1 Out -
PROMIO_OEN PROM/IO Output Enable No Out Low
PROMIO_WEN PROM/IO Write Enable No Out Low
PROMIO_BRDYN PROM/IO Bus ready No In Low
PROMIO_READ PROM/IO Bus reading (for buffer control) No Out High
PROMIO_DATA[15:0] PROM/IO data See 3.3.1 BiDir -
IO_SN PROM/IO chip select See 3.3.1 Out Low
WDOGN Watchdog output No Out-Tri Low
GPIO[15:0] General Purpose I/O See 3.3.1 and
3.1
Bidir -
GPIO2[21:0] Second GPIO See 3.3.1
UART0_TXD UART 0, transmit data See 3.3.1 Out -
UART0_RXD UART 0, receive data See 3.3.1 In -
UART0_RTSN UART 0, request to sent See 3.3.1 Out Low
UART0_CTSN UART 0, clear to send See 3.3.1 In Low
UART1_TXD UART 1, transmit data See 3.3.1 Out -
UART1_RXD UART 1, receive data See 3.3.1 In -
UART1_RTSN UART 1, request to sent See 3.3.1 Out Low
UART1_CTSN UART 1, clear to send See 3.3.1 In Low
GR1553_BUSARXEN MIL-STD-1553 Bus A receiver enable See 3.3.1 Out High
Table 28. All external signals, before pin sharing
Name Usage Pin sharing Direction Polarity

COBHAM GR740 Specifications

General

Brand	COBHAM
Model	GR740
Category	Computer Hardware
Language	English