參數(shù)資料
型號(hào): LAN91C96ITQFP
廠商: STANDARD MICROSYSTEMS CORP
元件分類: 微控制器/微處理器
英文描述: NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER
中文描述: 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100
封裝: 1 MM THICKNESS, TQFP-100
文件頁數(shù): 64/110頁
文件大小: 655K
代理商: LAN91C96ITQFP
Non-PCI Single-Chip Full Duplex Ethernet Controller
Rev.
11/18/2004
Page 64
SMSC DS – LAN91C96I
DATASHEET
Figure 8.1 – Interrupt Service Routine
ISR
Save Bank Selec & Address
Ptr Registerst
Mask Interrupts
Read Interrupt Register
Call TX INTR or
TXEMPTY INTR
TX
INTR
Get Next TX
RX
INTR
Yes
No
No
Yes
Call
RXINTR
ALLOC
INTR
No
Yes
Write Allocated Pkt# into
Packet Number Reg.
Write Ad Ptr Reg. &
CopyData & Source Address
Enqueue Packet
Packet
Available for
Transmission
Yes
No
Call ALLOCATE
EPH
INTR
No
Yes
Call EPH
INTR
Set "Ready for Packet" Flag
Return Buffers to Upper Layer
Disable Allocation Interrupt
Mask
Restore Address Pointer &
Bank Select Registers
Unmask Interrupts
Exit ISR
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