PXR40RM Datasheet, PDF (634/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

FlexRay Communication Controller (FLEXRAY)
Table 22-51. SSSR Field Descriptions
Field
Description
SEL
Selector — This field selects one of the four internal slot status selection registers for access.
00 select SSSR0.
01 select SSSR1.
10 select SSSR2.
11 select SSSR3.
SLOTNUMBER Slot Number — This field specifies the number of the slot whose status will be saved in the corresponding
slot status registers.
Note: If this value is set to 0, the related slot status register provides the status of the symbol window after the
NIT start, and provides the status of the NIT after the cycle start.
Internal Slot
Status Selection
Register
SSSR0
SSSR1
SSSR2
SSSR3
Table 22-52. Mapping Between SSSRn and SSRn
Write the Slot Status of the Slot Selected by SSSRn for each
Even Communication Cycle
Odd Communication Cycle
For Channel B
to
SSR0[15:8]
SSR2[15:8]
SSR4[15:8]
SSR6[15:8]
For Channel A
to
SSR0[7:0]
SSR2[7:0]
SSR4[7:0]
SSR6[7:0]
For Channel B
to
SSR1[15:8]
SSR3[15:8]
SSR5[15:8]
SSR7[15:8]
For Channel A
to
SSR1[7:0]
SSR3[7:0]
SSR5[7:0]
SSR7[7:0]
22.5.2.45 Slot Status Counter Condition Register (SSCCR)
Base + 0x0066
0
1
R0
0
W WMD
Reset 0
0
2
3
SEL
16-bit write access required
Write: Anytime
4
5
6
7
8
9
10
11
12
13
14
15
0
CNTCFG MCY VFR SYF NUF SUF
STATUSMASK[3:0]
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Figure 22-45. Slot Status Counter Condition Register (SSCCR)
This register is used to access and program the four internal non-memory mapped Slot Status Counter
Condition Registers SSCCR0 to SSCCR3. Each of these four internal slot status counter condition
registers defines the mode and the conditions for incrementing the counter in the corresponding Slot Status
Counter Registers (SSCR0–SSCR3). The correspondence is given in Table 22-54. For a detailed
description of slot status counters, refer to Section 22.6.18.4, Slot Status Counter Registers.
22-50
PXR40 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor