PXR40RM Datasheet, PDF (641/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

FlexRay Communication Controller (FLEXRAY)
22.5.2.53 Receive FIFO Watermark and Selection Register (RFWMSR)
Base + 0x0086
Write: WM_A/WM_B: POC:config, SEL: Anytime
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
R
W
WM_A//WM_B
0
0
0
0
0
0
0
SEL
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 22-54. Receive FIFO Watermark and Selection Register (RFWMSR)
This register is used to
• select a receiver FIFO for subsequent programming access through the receiver FIFO
configuration registers summarized in Table 22-62.
• to define the watermark for the selected FIFO.
Table 22-62. SEL Controlled Receiver FIFO Registers
Register
Receive FIFO Start Index Register (RFSIR)
Receive FIFO Depth and Size Register (RFDSR)
Receive FIFO Message ID Acceptance Filter Value Register (RFMIDAFVR)
Receive FIFO Message ID Acceptance Filter Mask Register (RFMIAFMR)
Receive FIFO Frame ID Rejection Filter Value Register (RFFIDRFVR)
Receive FIFO Frame ID Rejection Filter Mask Register (RFFIDRFMR)
Receive FIFO Range Filter Configuration Register (RFRFCFR)
Receive FIFO Range Filter Control Register (RFRFCTR)
Field
WM_A
WM_B
SEL
Table 22-63. RFSR Field Descriptions
Description
Watermark — This field defines the watermark value for the selected FIFO. This value is used to control the
generation of the almost full interrupt flags.
Select — This control bit selects the receiver FIFO for subsequent programming.
0 Receiver FIFO for channel A selected
1 Receiver FIFO for channel B selected
22.5.2.54 Receive FIFO Start Index Register (RFSIR)
Base + 0x0088
0
1
R0
0
W
Reset 0
0
2
3
4
5
6
7
8
9
10
11
12
0
0
0
0
SIDX_A/SIDX_B
0
0
0
0
0
0
0
0
0
0
0
Figure 22-55. Receive FIFO Start Index Register (RFSIR)
Write: POC:config
13
14
15
0
0
0
This register defines the message buffer header index of the first message buffer of the selected FIFO.
Freescale Semiconductor
PXR40 Microcontroller Reference Manual, Rev. 1
22-57