ml675050 Oki Semiconductor, ml675050 Datasheet - Page 18

• Manufacturer Part Number: ml675050
• Description: Arm7tdmi Based Micro-controller For Ic Card Reader/writer
• Manufacturer: Oki Semiconductor

PIN DISCRIPTION (REQUEST (DMA/INTERRUPT) SIGNALS)
Pin name
Interrupt request signals
EXINT0
EXINT1
EXINT2
EXINT3
EXINT4
EXINT5
EXINT6
DMA control signals
EXREQ0
EXACK0
EXREQ1
EXACK1
OKI Semiconductor
Discript in
FUNCTION
LIST
INT input 0
INT input 1
INT input 2
INT input 3
INT input 4
INT input 5
INT input 6
for USBdevice
VBUS
DMA req. 0
DMA ack. 0
DMA req. 1
DMA ack. 1
IO
O
O
I
I
I
I
I
I
I
I
I
Discript in detail
(Inside the parentheses the QFP pin number is shown)
External interrupt 0 input signal.
(24, 77)
External interrupt 1 input signal.
(48, 78)
External interrupt 2 input signal.
(10, 139)
External interrupt 3 input signal.
(35, 140)
External interrupt 4 input signal.
(116, 128)
External interrupt 5 input signal.
(82, 117)
External interrupt 6 input signal
(for USB device VBUS).
(130)
Ch 0 DMA request signal, used when
DMA controller configured for DREQ type
(22)
Ch 0 DREQ signal clear request. The DMA device
responds to this output by negating DREQ.
(23)
Ch 1 DMA request signal, used when
DMA controller configured for DREQ type
(85)
Ch 1 DREQ signal clear request. The DMA device
responds to this output by negating DREQ.
(86)
Primary/
Secondary/
Tertiary
Tertiary
Tertiary
Tertiary
Tertiary
Tertiary
Tertiary
Secondary
Tertiary
Tertiary
Tertiary
Tertiary
FEDL675050-02
ML675050
Logic
Positive/
Negative
Positive/
Negative
Positive/
Negative
Positive/
Negative
Positive/
Negative
Positive/
Negative
Positive/
Negative
Positive
Positive
Positive
Positive
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