W86L387D Winbond Electronics, W86L387D Datasheet - Page 10

• 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

W86L387D
RST (Reset): This bit = 1 is software reset and is used to reset the internal logic and receive and
transmit data buffer, the content of other registers are not affected.
PWD (Power down): This bit = 1 is used to power down the internal logic and crystal driver. Set this bit
to low will enabled the W86L387D when the W86L387D is in power down state. But the W86L387D
will never enabled if Host interface type 2 is configured and the Host I/F clock (HCKI) input is disabled.
SIEN (Serial interface enable): The MS bus interface is enabled when this bit is high.
DAKEN (DMA acknowledge enable): This bit is used to set the DMA request and acknowledge mode.
When this bit is low, the XDRQN will active once by accessing receive/transmit data buffer register
and not influenced by any state of XDAKN signal. When this bit is high, the XDRQN will kept in low
(active) state continuously and the XDAKN is used to count the data access cycle. The XDRQN will
return to high when the last data access cycle has completely. The DAKEN must set at low if the Host
interface type 2 is configured.
NO_CRC (No CRC): The CRC code in the MS interface will not generated and checked when this bit
is set high. This mode should not use in normal operation condition.
BSY_CNT (Busy count): These bits set the time out value when the MS interface is accessing. The
time out value is 4 times this value of CLK period, the initial value is 20 cycles of CLK (default value is
5). The time out error will not detected when the value set to 0.
Receive Data Buffer Register A[3:1] = 010, Read only:
BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10 BIT 9 BIT 8 BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0
Receive data buffer
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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