 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SC2200UFH-266 Datasheet(PDF) 11 Page - National Semiconductor (TI) |
|
|
||||||||||||||||||||||||||||||
SC2200UFH-266 Datasheet(HTML) 11 Page - National Semiconductor (TI) |
|
|
11 / 433 page  Revision 3.0 11 www.national.com Architecture Overview (Continued) 1.1 GX1 MODULE The GX1 processor (silicon revision 8.1.1) is the central module of the SC2200. For detailed information regarding the GX1 module, refer to the G eode GX1 Processor Series datasheet and the Geode GX1 Processor Series Silicon Revision 8.1.1 errata. The SC2200’s device ID is contained in the GX1 module. Software can detect the revision by reading the DIR0 and DIR1 Configuration registers (see Configuration registers in the G eode GX1 Processor Series datasheet). The SC2200 device errata contains the specific values. 1.1.1 Memory Controller The GX1 module is connected to external SDRAM devices. For more information see Section 2.4.2 "Memory Interface Signals" on page 57, and the "Memory Controller" chapter in the GX1 Processor Series datasheet. There are some differences in the SC2200’s memory con- troller and the stand-alone GX1 processor’s memory con- troller: 1) There is drive strength/slew control in the SC2200 that is not in the GX1. The bits that control this function are in the MC_MEM_CNTRL1 and MC_MEM_CNTRL2 registers. In the GX1 processor, these bits are marked as reserved. 2) The SC2200 supports two banks of memory. The GX1 supports four banks of memory. In addition, the SC2200 supports a maximum of eight devices and the GX1 supports up to 32 devices. With this difference, the MC_BANK_CFG register is different. Table 1-1 summarizes the 32-bit registers contained in the SC2200’s memory controller. Table 1-2 gives detailed reg- ister/bit formats. Table 1-1. SC2200 Memory Controller Register Summary GX_BASE+ Memory Offset Width (Bits) Type Name/Function Reset Value 8400h-8403h 32 R/W MC_MEM_CNTRL1. Memory Controller Control Register 1 248C0040h 8404h-8407h 32 R/W MC_MEM_CNTRL2. Memory Controller Control Register 2 00000801h 8408h-840Bh 32 R/W MC_BANK_CFG. Memory Controller Bank Configuration 41104110h 840Ch-840Fh 32 R/W MC_SYNC_TIM1. Memory Controller Synchronous Timing Register 1 2A733225h 8414h-8417h 32 R/W MC_GBASE_ADD. Memory Controller Graphics Base Address Register 00000000h 8418h-841Bh 32 R/W MC_DR_ADD. Memory Controller Dirty RAM Address Register 00000000h 841Ch-841Fh 32 R/W MC_DR_ACC. Memory Controller Dirty RAM Access Register 0000000xh |
Similar Part No. - SC2200UFH-266 |
|
Similar Description - SC2200UFH-266 |
|
|
Link URL |
| Privacy Policy |
| ALLDATASHEET.COM |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
| Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
|
Family Site : ic2ic.com |
icmetro.com |
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
