 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
SC1100 Datasheet(PDF) 50 Page - National Semiconductor (TI) |
|
|
|
|||||||||||||||||||||||||||||
SC1100 Datasheet(HTML) 50 Page - National Semiconductor (TI) |
|
|
50 / 348 page  www.national.com 50 Revision 1.1 General Configuration Block (Continued) 3.2 MULTIPLEXING, INTERRUPT SELECTION, AND BASE ADDRESS REGISTERS The registers described in the Table 3-2 are used to deter- mine general configuration for the Geode SC1100. These registers also indicate which multiplexed signals are issued via balls from which more than one signal may be output. For more information about multiplexed signals and the appropriate configurations, see Section 2.1 "Ball Assign- ments" on page 17. Table 3-2. Multiplexing, Interrupt Selection, and Base Address Registers Bit Description Offset 30h Pin Multiplexing Register - PMR (R/W) Reset Value: 00000000h Width: DWORD This register configures pins with multiple functions. See Section 2.1 "Ball Assignments" on page 17 for more information about multi- plexing information. 31:30 Reserved. Always write 0. 29 Test Signals. Selects ball functions. 0: Internal Test/Serial Port Signal 1: Internal Test Signal Ball # Name Add’l Dependencies Name Add’l Dependencies AA24 GPIO41 PMR[27] and FPCI_MON = 0 TEST0 PMR[27] and FPCI_MON = 0 F_C/BE0# PMR[27] or FPCI_MON = 1 F_C/BE0# PMR[27] or FPCI_MON = 1 AD10 FMUL3B None TEST1 None AC11 PLL5B None TEST2 None C20 IRTX+GXCLK See PMR[6] TEST3 PMR[6] = 1 28 Test Signals. Selects ball function. 0: GPIO Signal 1: Internal Test Signal Ball # Name Add’l Dependencies Name Add’l Dependencies B20 GPIO40 PMR[27] and FPCI_MON = 0 SDTEST5 PMR[27] and FPCI_MON = 0 F_AD6 PMR[27] or FPCI_MON = 1 F_AD6 PMR[27] or FPCI_MON = 1 27 FPCI_MON (Fast-PCI Monitoring). Fast-PCI monitoring output signals can be enabled in two ways: by setting this bit to 1 or by strapping FPCI_MON (ball AB25) high. (The strapped value can be read back at MCR[30].) Listed below is how these two options work together and the signals that are enabled (enabling overrides add’l dependencies). PMR[27] FPCI_MON 0 0 Disable Fast-PCI monitoring signals 0 1 Enable Fast-PCI monitoring signals 1 0 Enable Fast-PCI monitoring signals 1 1 Enable Fast-PCI monitoring signals Ball # FPCI_MON Signal Other Signal Add’l Dependencies AD24 FPCICLK GPIO1 None AB24 F_AD7 GPIO47 None B20 F_AD6 GPIO40+SDTEST5 See PMR[28] AB23 F_AD5 GPIO38 None AD23 F_AD4 GPIO13+AB2D See PMR[19] AE23 F_AD3 GPIO12+AB2C See PMR[19] Y2 F_AD2 AB1D None Y1 F_AD1 AB1C None AC24 F_AD0 GPIO18 None AF11 F_C/BE3# GPIO7+RTS#+IDE_DACK1# See PMR[17] AE11 F_C/BE2# SOUT None AD11 F_C/BE1# SIN None AA24 F_C/BE0# GPIO41+TEST0 See PMR[29] AF12 F_FRAME# GPIO10+DSR#+IDE_IORDY1 See PMR[18] AE12 F_IRDY# GPIO9+DCD#+IDE_IOW1# See PMR[18] AE18 F_DEVSEL# GPIO16+IRRX1+PC_BEEP See PMR[6] AF23 F_STOP# AC97_RST# None AF22 F_GNT0# SDATA_IN None AC22 F_TRDY# BIT_CLK None AE18 F_DEVSEL# GPIO16+PC_BEEP+IRRX1 See PMR[6] AD12 INTR_O GPIO6+DTR#/BOUTIDE_IOR1# See PMR[18] AC12 SMI_O GPIO8+CTS#+IDE_DREQ1 See PMR[17] 26 Reserved: Always write 0. |
|
Link URL |
| Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link to Datasheet | 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
