Electronic Components Datasheet Search |
|
EI68C153 Datasheet(PDF) 1 Page - IMP, Inc |
|
EI68C153 Datasheet(HTML) 1 Page - IMP, Inc |
1 / 2 page 19 Semiconductor, Inc. Ei68C153 Bus Interrupter Module (VME) DESCRIPTION The Bus Interrupter Module (BIM) provides an interface between interrupting devices and a system bus such as the VMEbus or VERSAbus™. It generates a maximum of 7 bus interrupts on the IRQ1-IRQ7 outputs and responds to interrupt acknowledge cycles for up to 4 independent slaves. The BIM can also supply an inter- rupt vector during an interrupt acknowledge cycle. Moreover, it sits in the interrupt acknowledge daisy- chain which allows for multiple interrupts on the level acknowledged. The BIM accepts device interrupt requests on inputs INT0, INT1, INT2 and INT3. Each input is regulated by Bit 4 (IRE) of the associated control register (CRO controls INT0, CR! controls INT1,etc.). If IRE (Interrupt Enable) is set and a device input is asserted, an Interrupt Request open-collector output (IRQ1 - IRQ7) is asserted. The asserted IRQX output is selected by the value programmed in Bits 0, 1, and 2 of the control register (L0, L1, and L3). This 3-bit field determines the interrupt request level as set by software. Two or more interrupt sources can be programmed to the same request level. The corresponding IRQX out- put will remain asserted until multiple interrupt acknowl- edge cycles respond to all requests. If the interrupt request level is set to zero, the interrupt is disabled because there is no corresponding IRQ output. FEATURES • Programmable interrupt controller for VMEbus and VERSAbus ™ systems • Receives and prioritizes 4 independent local interrupt sources • 7 programmable interrupt request levels for each local interrupt source • Separate control and vector registers for each local interrupt source • Interrupt enable and interrupt clear bits • Two response modes: Internal (vectored mode) or external (interrupting device-sup plies-the-vector mode) • Interrupt acknowledge daisy chain • Flag bits with auto-clear capability • Pin & function compatible with Motorola MC68153 • Single 5.0 volt power supply • Advanced CMOS low-power technology PIN CONFIGURATION VCC R/W CS DTACK IACK IACKIN IACKOUT IRQ1 GND GND VCC IRQ2 IRQ3 IRQ4 IRQ5 IRQ6 IRQ7 CLK INT0 GND A3 A2 A1 D7 D6 D5 D4 D3 D2 GND VCC D1 D0 INTAE INTAL1 INTAL0 INT3 INT2 INT1 VCC/RST 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 E I 6 8 C 1 5 3 40-PIN DIP Part Numbers May Be Marked With "IMP" or "Ei." For additional information, contact IMP, Inc. at 408.432.9100 or visit www.impweb.com IMP, Inc. acquired Epic products on January 26, 2001. (see press release at http://www.impweb.com/PRESS/PR012601.htm) |
Similar Part No. - EI68C153 |
|
Similar Description - EI68C153 |
|
|
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 |