Receive Buffer Register; Table 25-17 Receive Buffer Register Description - Motorola DragonBall MC9328MX1 Reference Manual

25.6.9 Receive Buffer Register

The read-only Receive Buffer Register (RCV_BUF) contains error flags and data from the next location in
the receive buffer. The bit descriptions and settings for the Receive Buffer Register are provided in
Table 25-17.
RCV_BUF
BIT 31 30 29
TYPE r r r
0 0 0
RESET
BIT 15 14 13
TYPE r r r
0 0 0
RESET
Name
Reserved Reserved—These bits are reserved and should read 0.
Bits 31–10
FE Frame Error Flag—Indicates whether a frame error was detected during
Bit 9 the reception of the corresponding byte read in the RCV field. The FE flag
cannot create an interrupt. It need not be cleared because it is overwritten
by the next byte received into that location of the FIFO.
PE Parity Error Flag—Indicates whether a parity error was detected during
Bit 8 the reception of the corresponding byte read in the RCV field. The PE flag
cannot create an interrupt. It need not be cleared because it is overwritten
by the next byte received into that location of the FIFO.
RCV Receive Buffer—Contains data from the next location in the receive buffer.
Bits 7–0
MOTOROLA
Receive Buffer Register
28 27 26 25
r r r r
0 0 0 0
12 11 10 9
FE
r r r r
0 0 0 0
Table 25-17. Receive Buffer Register Description
Description
SmartCard Interface Module (SIM)
24 23 22 21 20
r r r r
0 0 0 0
0x0000
8 7 6 5
PE
r r r r
0 0 0 0
0x0000
Programming Model
Addr
0x00211020
19 18 17
r r r r
0 0 0 0
4 3 2 1
RCV
r r r r
0 0 0 0
Settings
0 = Byte contains no
framing error
1 = Byte contains a
framing error
0 = Byte contains no
parity error
1 = Byte contains a
parity error
25-33
16
r
0
0
r
0