參數(shù)資料
型號: 83C795
廠商: SMSC Corporation
英文描述: Ethernet System Controller
中文描述: 以太網(wǎng)系統(tǒng)控制器
文件頁數(shù): 65/136頁
文件大?。?/td> 1996K
代理商: 83C795
with fast (35 nsec) RAMs. For more details, see the
AC timing specs in Section 10.
6.6
INTERRUPT REQUEST CONTROL
LOGIC
There are two sources of interrupt requests to the
host: the LAN Controller and a programmable bit
(SINT) in the ICR register. The LAN controller
section provides for the masking, polling, and
clearing of its individual interrupt conditions. The
sum of the masked LAN interrupt conditions is
’OR’ed with the programmable interrupt from the
host interface section (SINT) and gated by the EIL
bit from the ICR register prior to turning on one of
the seven program-selectable tri-state drivers. The
driver selection is made via bits in the GCR register.
Interrupt disabling should be accomplished via the
ICR.EIL bit, not by changing the interrupt level to
’0’, because during the transition from an active
level to tri-state, false interrupts may be generated.
The Interrupt Request Control logic is depicted in
Figure 6-5.
FIGURE 6-5. INTERRUPT CONTROL LOGIC
83C795
HOST INTERFACE SECTION
52
相關PDF資料
PDF描述
84063 The Constituents of Semiconductor Components
8406601QA CMOS Programmable Peripheral Interface
8406601XA CMOS Programmable Peripheral Interface
8406602XA CMOS Programmable Peripheral Interface
8406602QA CMOS Programmable Peripheral Interface
相關代理商/技術參數(shù)
參數(shù)描述
83C800-009 制造商:DRS 功能描述:
83C825EQFP 制造商:SMSC 功能描述:
83C845 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Microcontrollers for TV and video MTV
83C851 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:CMOS single-chip 8-bit microcontroller with on-chip EEPROM
83C852DIE 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller