W83627SF-AW Winbond, W83627SF-AW Datasheet - Page 74
W83627SF-AW
Manufacturer Part Number
W83627SF-AW
Description
Manufacturer
Winbond
Datasheet
1.W83627SF-AW.pdf
(116 pages)
Specifications of W83627SF-AW
Pin Count
128
Lead Free Status / RoHS Status
Not Compliant
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13. SMART CARD INTERFACE
Because of similarity of transmission protocol to UART, the register map of Smart Card interface of
Winbond I/O is designed to be UART-like for easy programming. Details of these registers are
described as follows.
13.1 Receiver Buffer Register (RBR, read only at "base address + 0" when BDLAB
Data from IC card are buffered in this register for host to read.
13.2 Transmitter Buffer Register (TBR, write only at "base address + 0" when
Host writes to this register to send data to IC card.
13.3 Interrupt Control Register (ICR, at "base address + 1" when BDLAB = 0)
This 8-bit register allows the four types of interrupts. The interrupt system can be completely disabled
by resetting bits 0 through 4 of the Interrupt Control Register (ICR). A selected interrupt can be
enabled by setting the appropriate bits of this register to a logical 1.
Bit 7-5: These bits are always logic 0.
Bit 4: ESCPTI. Setting this bit to a logical 1 enables SCPSNT interrupt when a card is inserted.
Bit 3: This bit is always logic 0.
Bit 2: ESSRI. Setting this bit to a logical 1 enables Smart Card interface status register interrupt.
Bit 1: ETBREI. Setting this bit to a logical 1 enables TBR empty interrupt.
Bit 0: ERDRI. Setting this bit to a logical 1 enables RBR data ready interrupt.
= 0)
BDLAB = 0)
7
0
6
0
5
0
4
3
0
2
1
0
-74-
Enable RBR Data Ready Interrupt (ERDRI)
Enable TBR Empty Interrupt (ETBREI)
Enable SSR Interrupt (ESSRI)
Enabel SCPSNT Interrupt (ESCPTI)
W83627SF
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