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SB16C1052PCI_Data Sheet_EN

ManualsBrandsSystemBase ManualsElectronic ComponentsPCI to Dual UART with 256 Byte FIFO Bridge Controller - 90pcs Bundle
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SB16C1052PCI
PCI Target Interface Controller
with Dual UART
JULY 2013 REV 1.06
38
12.2.2 Auto-CTS
Setting EFR[7] to 1b enables Auto-RTS. If enabled, data in TX FIFO are determined to be
transmitted or suspended by the value of CTS#. If 0b, it means external UART can
receive new data and data in TX FIFO are transmitted through TXD pin. If 1b, it means
external UART can not accept more data and data in TX FIFO are not transmitted. But
data being transmitted by then complete transmission. These procedures are performed
irrespective of FIFO modes. While Auto-CTS is enabled, you can verify the input value of
CTS# by FSR[1]. If 0b, CTS# is 0b and it means external UART can accept new data, If
1b, CTS# is 1b and it means external UART can not accept more data and data in TX
FIFO are not being transmitted. If IER[7] is set to 1b, interrupt is generated by Auto-CTS
when the input of CTS# is changed from 0b to 1b, and it is shown on ISR[5:0]. Interrupts
generated by Auto-CTS are removed if MSR is read.