Motorola PowerQUICC II MPC8280 Series Reference Manual page 1116

Transmission Rate Modes—External, Internal, and Expanded Internal
0 1 2
Field GS0 GS1
Reset
R/W
Addr
16 17 18
Field GS8 GS9
Reset
R/W
Addr
Figure 31-66. FCC Internal Rate Selection Register HI (FIRSRx_HI)
Table 31-53 describes FIRSRx_HI fields.
Table 31-53. IRSRx_HI Field Descriptions (TIREM=1)
Bit Name
0–31 GSy Group select for PHY y
00The transmit internal rate for PHY address y is controlled by FTIRRx_GRP0.
01The transmit internal rate for PHY address y is controlled by FTIRRx_GRP1.
10The transmit internal rate for PHY address y is controlled by FTIRRx_GRP2.
11The transmit internal rate for PHY address y is controlled by FTIRRx_GRP3.
0 1 2
Field GS16 GS17
Reset
R/W
Addr
16 17 18
Field GS24 GS25
Reset
R/W
Addr
Figure 31-67. FCC Internal Rate Selection Register LO (FIRSRx_LO)
31-102
Freescale Semiconductor, Inc.
3 4 5 6
GS2 GS3
0000_0000_0000_0000
0x11388 (FIRSR1_HI), 0x113A8 (FIRSR2_HI)
19 20 21 22
GS10 GS11
0000_0000_0000_0000
0x1138A (FIRSR1_HI), 0x113AA (FIRSR2_HI)
3 4 5 6
GS18 GS19
0000_0000_0000_0000
0x1138C (FIRSR1_HI), 0x113AC (FIRSR2_HI)
19 20 21 22
GS26 GS27
0000_0000_0000_0000
0x1138E (FIRSR1_HI), 0x113AE (FIRSR2_HI)
MPC8280 PowerQUICC II Family Reference Manual
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7 8 9 10 11
GS4 GS5
R/W
23 24 25 26 27
GS12 GS13
R/W
Description
7 8 9 10 11
GS20 GS21
R/W
23 24 25 26 27
GS28 GS29
R/W
12 13 14 15
GS6 GS7
28 29 30 31
GS14 GS15
12 13 14 15
GS22 GS23
28 29 30 31
GS30 —
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