mk50h27 STMicroelectronics, mk50h27 Datasheet - Page 35

• Manufacturer Part Number: mk50h27
• Description: Signalling System 7 Link Controller
• Manufacturer: STMicroelectronics

4.3.1.2 Receive Message Descriptor 1 (RMD1)
4.3.1.3 Receive Message Descriptor 2 (RMD2)
4.3.1.4 Receive Message Descriptor 3 (RMD3)
BIT
15:01
BIT
15:00
BIT
15:00
1
5
1
4
NAME
RBADR
NAME
BCNT
NAME
MCNT
1
3
1
5
1
1
5
1
2
1
4
1
4
1
1
1
3
1
3
descriptor. RBADR is written by the Host CPU and unchanged by
MK50H27. The receive buffers must be word aligned.
descriptor expressed in two’s complement. This field is written to by
the Host and unchanged by MK50H27. The value of BCNT must be
an even number.
unit. MCNT is valid only when ELF is set to a one. MCNT is written
by MK50H27 and read by the Host. If ELF is set to a zero the entire
buffer has been utilized and the message byte count is given in
BCNT above. The value of this field is expressed in two’s comple-
ment.
DESCRIPTION
The low order 16 address bits of the receive buffer pointed to by this
DESCRIPTION
Buffer Byte Count is the length of the buffer pointed to by this
DESCRIPTION
Message Byte Count is the length, in bytes, of the received signal
1
0
1
2
1
2
RBADR<15:00>
0
9
1
1
1
1
0
8
1
0
1
0
BCNT<15:00>
MCNT<15:00>
0
7
0
9
0
9
0
6
0
8
0
8
0
5
0
7
0
7
0
4
0
6
0
6
0
3
0
5
0
5
0
2
0
4
0
4
0
1
0
3
0
3
0
0
0
0
2
0
2
0
1
0
1
0
0
0
0
0
MK50H27
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