73S1210F-44M/F/PC Maxim Integrated Products, 73S1210F-44M/F/PC Datasheet - Page 95
73S1210F-44M/F/PC
Manufacturer Part Number
73S1210F-44M/F/PC
Description
Microcontrollers (MCU)
Manufacturer
Maxim Integrated Products
Datasheet
1.73S1210F-44MFPC.pdf
(126 pages)
Specifications of 73S1210F-44M/F/PC
Lead Free Status / Rohs Status
Details
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DS_1210F_001
Byte Control Register (SByteCtl): 0xFE12 0x2C
This register controls the processing of characters and the detection of the TS byte. When receiving, a
Break is asserted at 10.5 ETU after the beginning of the start bit. Break from the card is sampled at 11
ETU.
Rev. 1.4
SByteCtl.7
SByteCtl.6
SByteCtl.5
SByteCtl.4 BRKDUR.1 Break Duration Select – 00 = 1 ETU, 01 = 1.5 ETU, 10 = 2 ETU,
SByteCtl.3 BRKDUR.0
SByteCtl.2
SByteCtl.1
SByteCtl.0
MSB
Bit
–
Symbol
DETTS
DIRTS
–
–
–
–
DETTS
Detect TS Byte – 1 = Next Byte is TS, 0 = Next byte is not TS. When set, the
hardware will treat the next character received as the TS and determine if
direct or indirect convention is being used. Direct convention is the default
used if firmware does not set this bit prior to transmission of TS by the smart
card to the firmware. The hardware will check parity and generate a break as
defined by the DISPAR and BRKGEN bits in the parity control register. This
bit is cleared by hardware after TS is received. TS is decoded prior to the
FIFO and is stored in the receive FIFO.
Direct Mode TS Select – 1 = direct mode, 0 = indirect mode. Set/cleared by
hardware when TS is processed indicating either direct/indirect mode of
operation. When switching between smart cards, the firmware should write
the bit appropriately since this register is not unique to an individual smart
card (firmware should keep track of this bit).
11 = reserved. Determines the length of a Break signal which is generated
when detecting a parity error on a character reception in T=0 mode.
DIRTS
Table 89: The SByteCtl Register
BRKDUR.1 BRKDUR.0
Function
–
–
73S1210F Data Sheet
–
LSB
95
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