Manualshelf

DataSheet_SB16C1053APCI_v106

ManualsBrandsSystemBase ManualsElectronic ComponentsPCI to Dual UART and Single Parallel with MIO Bus Bridge Controller, 128-pin TQFP - 90pcs Bundle
71727374757677787980
SB16C1053APCI
PCI Target Controller with 2 Serial, 1 Parallel and MIO Bus
PCI to 2S+1P with MIO Bus Bridge
JULY 2013 REV 1.06
77
0b: When FIFO or Auto-CTS flow control is disabled.
If FIFO and Auto-CTS flow control is enabled, 0b is inputted
in CTS# pin and it means external device can receive more
data. This time data in TX FIFO are transmitted.
1b: If FIFO and Auto-CTS flow control is enabled, 1b is inputted
in CTS# pin and it means external device can not receive
more data. This time data in TX FIFO are not transmitted.
For more details, refer to ‘12.2 Hardware Flow Control’.
0
FSR[0]
RX Software Flow Control Status:
0b: When FIFO or RX Software flow control is disabled.
If FIFO and RX Software flow control is enabled, it means
Xoff character has never arrived or Xon character arrived
after Xoff character had arrived(it means external device
can receive more data). This time data in TX FIFO are
transmitted.
1b: If FIFO and RX Software flow control is enabled, it means
Xoff character has arrived and external device can not
receive data any more. This time characters in TX FIFO are
not transmitted.
For more details, refer to ‘12.3 Software Flow Control’.
12.18 Page Select Register (PSR, Page 3)
If BFh is written in LCR, registers in Page3 and Page4 can be accessed. PSR is used
to determine which page to use. Table 12–13 shows PSR bit settings.
Table 12–13: Page Select Register Description
Bit
Symbol
Description
7:1
PSR[7:1]
Access Key:
When writing data on PSR to change page, Access Key must be
correspondent. If the value of PSR[7:1] is 1010_010b, data is
written on PSR[0] and page can be selected. If PSR[7:1] is read, it
reads 0000_000b which is irrespective of Access Key.
0
PSR[0]
Page Select:
0b: Page 3 is selected (default).
1b: Page 4 is selected.
12.19 Auto Toggle Control Register (ATR, Page 3)
ATR controls the signals for controlling input/output signals when using Line Interface
as RS422 or RS485, so eliminates additional glue logic outside. Table 12–14 shows
ATR bit settings.