W86L387D Winbond Electronics, W86L387D Datasheet - Page 12

• Manufacturer Part Number: W86L387D
• Manufacturer: Winbond Electronics

Specifications of W86L387D

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Package Type: LQFP
• Rad Hardened: No
• Lead Free Status / Rohs Status: Not Compliant

Interrupt Status Register A[3:1] = 011, Read only:
RDY (Ready): This bit = 1 when the MS transfer protocol ended and the serial interface is in ready
state, this bit always reflect the serial interface status and never cleared when read the interrupt status
register.
SIF (Serial interface interrupt IN): This bit = 1 when serial interface received interrupt IN from the MS
card.
DREQ (DMA request interrupt IN): This bit = 1 when the data transfer is requested.
PIN (Parallel Input interrupt IN): This bit = 1 when the parallel input port change state.
CRC (CRC error interrupt): This bit = 1 when the received data with CRC error checked. This bit will
be disabled when NO_CRC bit is set in the control register.
TOE (Time out error interrupt): This bit is used to notify an abnormal operation of card accessing
when the count value of the BSY transmitted from the card is more than the time out value setted by
the BSY_CNT in the control register. The BS signal will remain at low when TOE activated and RDY
become high.
The XINTN goes low when any bit of interrupt status register becomes high, the XINTN signal will
return to high and the interrupt status register will cleared when read the interrupt status register but
the RDY bit will not cleared.
Interrupt Control Register A[3:1] = 011, Read/Write:
INT (Interrupt enable): XINTN output pin is enabled when this bit is high.
DREQ (DMA request interrupt enable): The XINTN will active (low) when this bit = 1 and DMA request
is active.
PIN (Parallel input interrupt enable): This bit = 1 to enable the parallel input interrupt.
RDY
BIT
15
BIT
-
15
0
BIT
14
SIF
-
BIT
14
0
BIT
DREQ
13
-
BIT
13
0
BIT
12
-
PIN
BIT
12
0
BIT
11
-
BIT
11
-
-
BIT
10
-
BIT
10
-
-
BIT
9
-
BIT 9
CRC TOE
0
- 10 -
BIT
8
-
BIT
0
8
INT DREQ PIN
BIT
0
7
BIT
7
-
BIT
BIT
0
6
6
-
BIT
BIT
5
-
0
5
BIT
BIT
4
-
-
4
-
BIT
BIT
3
-
-
3
-
W86L387D
BIT
BIT
2
2
-
-
-
BIT
BIT
1
1
-
-
-
BIT
BIT
0
0
-
-
-