Programming Model
MOTOROLA
SmartCard Interface Module (SIM)
25-29
25.6.6 Receive Status Register
The Receive Status Register (RCV_STATUS) provides the status of the SIM receiver and its FIFO. The bit
descriptions and settings for the Receive Status Register are provided in Table 25-14.
RCV_STATUS
Receive Status Register
Addr
0x00211014
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
TYPE
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CWT
CRCOK
LRCOK
RDRF
RFD
OEF
TYPE
r
r
r
r
r
r
r
r
r
r
rw
r
r
r
r
rw
RESET
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0x0008
Table 25-14. Receive Status Register Description
Name
Description
Settings
Reserved
Bits 31–6
Reserved—These bits are reserved and should read 0.
CWT
Bit 5
Character Wait Time Counter Flag
—Indicates when the
time between received characters is equal to or greater than
the value programmed in the CHAR_WAIT register.
0
=
No CWT violation has occurred
1
=
Time between two consecutive
characters exceeded the value
in CHAR_WAIT
CRCOK
Bit 4
Cyclic Redundancy Check Okay Flag
—Indicates when the
calculated 16-bit CRC value matches the expected value for
the current input data stream. The value is calculated across
all received characters from the point the CRCEN bit is set in
the CNTL register. The current CRC residual is reset by three
actions:
•
Clear the CRCEN bit in the CNTL register
•
Set the XMT_EN bit in the ENABLE register
•
Automatically reset by hardware when the ETC flag is
set at the end of a transmission.
0
=
Current CRC value does not
match remainder
1
=
Current calculated CRC value
matches the expected result
LRCOK
Bit 3
Linear Redundancy Check Okay Flag
—Indicates when the
calculated 8-bit LRC value is zero value for the current input
data stream. The value is calculated across all received
characters from the point the LRCEN bit is set in the CNTL
register. The current LRC residual is reset by three actions:
•
Clear the LRCEN bit in CNTL register
•
Set the XMT_EN bit in the ENABLE register
•
Automatically reset by hardware when ETC flag is set
at the end of a transmission.
0
=
Current LRC value does not
match remainder
1
=
Current calculated LRC value
matches the expected result
(zero)
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...