參數資料
型號: ELANSC410
英文描述: Single Synchronous Buck Pulse-Width Modulation (PWM) Controller; Temperature Range: 0&degC to 70°C; Package: 16-QFN
中文描述: ElanSC410 - ElanSC410框圖
文件頁數: 80/119頁
文件大小: 1167K
代理商: ELANSC410
lanSC310 Microcontroller Data Sheet
63
PREL IMINARY
ISA BUS DESCRIPTIONS
The two bus configuration options (local bus or maxi-
mum ISA bus) each support a somewhat different sub-
set of the ISA bus standard. These subsets are defined
Table 34.
ISA Bus Functionality Lost when
Configured for Local Bus Mode
Table 33.
ISA Bus Functionality
Pin Name
I/O
Function
SA23–SA0
O
System Address Bus
D15–D0
B
System Data Bus
IOCHRDY
I
I/O Channel Ready
RSTDRV
O
System Reset
MEMW
O
Memory Write
MEMR
O
Memory Read
IOW
O
I/O Write
IOR
O
I/O Read
AEN
O
DMA Address Enable
TC
O
Terminal Count
SYSCLK
O
System Clock (ISA bus timing is not
derived from this clock)
IRQ1
I
Interrupt IRQ1
PIRQ0
I
Programmable IRQx
PIRQ1
I
Programmable IRQx
DACK2
O
DMA Channel 2 Acknowledge
DRQ2
I
DMA Channel 2 Request
IOCS16
I
I/O Device is 16 bits
MCS16
I
Memory Device is 16 bits
IRQ14
I
Interrupt Request Input
SBHE
O
Byte High Enable
X1OUT
[BAUDOUT]
O
Video Oscillator (14.336 MHz)/
Serial Port Output
IOCHCHK
I
ISA I/O Channel Check
DRQ1
I
DMA Channel 1 Request
DACK1
O
DMA Channel 1 Acknowledge
DRQ5
I
DMA Channel 5 Request
DACK5
O
DMA Channel 5 Acknowledge
IRQ4
I
Interrupt Request Input
IRQ12
I
Interrupt Request Input
IRQ15
I
Interrupt Request Input
Pin Name
I/O
Function
BALE
O
ISA Bus Address Latch Enable
DRQ0
I
DMA Channel 0 Request
DRQ3
I
DMA Channel 3 Request
DRQ6
I
DMA Channel 6 Request
DRQ7
I
DMA Channel 7 Request
DACK0
O
DMA Channel 0 Acknowledge
DACK3
O
DMA Channel 3 Acknowledge
DACK6
O
DMA Channel 6 Acknowledge
DACK7
O
DMA Channel 7 Acknowledge
IRQ5
I
Interrupt Request Input
IRQ7
I
Interrupt Request Input
IRQ9
I
Interrupt Request Input
IRQ10
I
Interrupt Request Input
IRQ11
I
Interrupt Request Input
LA23–LA17
O
ISA Non-Latched Address
LMEG
O
ISA Memory Cycle Below 100000h
0WS
I
Zero Wait State Request
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相關代理商/技術參數
參數描述
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