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AM79C978VC/W 数据表(PDF) 208 Page - Advanced Micro Devices |
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AM79C978VC/W 数据表(HTML) 208 Page - Advanced Micro Devices |
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208 / 261 page  208 Am79C978 Control and Status Registers Note: u = undefined value, R = Running register, S = Setup register, T = Test register; all default values are in hexadecimal format. Table 89. Control and Status Registers (CSRs) RAP Addr Symbol Default Value Comments Use 00 CSR0 uuuu 0004 Am79C978 Controller Status Register R 01 CSR1 uuuu uuuu Lower IADR: maps to location 16 S 02 CSR2 uuuu uuuu Upper IADR: maps to location 17 S 03 CSR3 uuuu 0000 Interrupt Masks and Deferral Control S 04 CSR4 uuuu 0115 Test and Features Control R 05 CSR5 uuuu 0000 Extended Control and Interrupt 1 R 06 CSR6 uuuu uuuu RXTX: RX/TX Encoded Ring Lengths S 07 CSR7 0uuu 0000 Extended Control and Interrupt 1 R 08 CSR8 uuuu uuuu LADRF0: Logical Address Filter — LADRF[15:0] S 09 CSR9 uuuu uuuu LADRF1: Logical Address Filter — LADRF[31:16] S 10 CSR10 uuuu uuuu LADRF2: Logical Address Filter — LADRF[47:32] S 11 CSR11 uuuu uuuu LADRF3: Logical Address Filter — LADRF[63:48] S 12 CSR12 uuuu uuuu PADR0: Physical Address Register — PADR[15:0][ S 13 CSR13 uuuu uuuu PADR1: Physical Address Register — PADR[31:16] S 14 CSR14 uuuu uuuu PADR2: Physical Address Register — PADR[47:32] S 15 CSR15 see register description MODE: Mode Register S 16 CSR16 uuuu uuuu IADRL: Base Address of INIT Block Lower (Copy) T 17 CSR17 uuuu uuuu IADRH: Base Address of INIT Block Upper (Copy) T 18 CSR18 uuuu uuuu CRBAL: Current RCV Buffer Address Lower T 19 CSR22 uuuu uuuu CRBAU: Current RCV Buffer Address Upper T 20 CSR20 uuuu uuuu CXBAL: Current XMT Buffer Address Lower T 21 CSR21 uuuu uuuu CXBAU: Current XMT Buffer Address Upper T 22 CSR22 uuuu uuuu NRBAL: Next RCV Buffer Address Lower T 23 CSR23 uuuu uuuu NRBAU: Next RCV Buffer Address Upper T 24 CSR24 uuuu uuuu BADRL: Base Address of RCV Ring Lower S 25 CSR25 uuuu uuuu BADRU: Base Address of RCV Ring Upper S 26 CSR26 uuuu uuuu NRDAL: Next RCV Descriptor Address Lower T 27 CSR27 uuuu uuuu NRDAU: Next RCV Descriptor Address Upper T 28 CSR28 uuuu uuuu CRDAL: Current RCV Descriptor Address Lower T 29 CSR29 uuuu uuuu CRDAU: Current RCV Descriptor Address Upper T 30 CSR30 uuuu uuuu BADXL: Base Address of XMT Ring Lower S 31 CSR31 uuuu uuuu BADXU: Base Address of XMT Ring Upper S 32 CSR32 uuuu uuuu NXDAL: Next XMT Descriptor Address Lower T 33 CSR33 uuuu uuuu NXDAU: Next XMT Descriptor Address Upper T |
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