W86L387D Winbond Electronics, W86L387D Datasheet - Page 9

• 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

6.2
Command Register A[3:1] = 000, Read/Write:
PID code is the packet ID also is the transfer protocol command (TPC) code of the MS bus when the
transfer protocol is started. This command must write when RDY bit in interrupt status register is high
and serial interface is enabled (SIEN bit in the control register is high).
The data size of the MS transfer protocol depends on the TPC code and may be up to 512 bytes, the
16-bit CRC code is generated automatically and not included in the data size. The direction of data
transfer is also determined from extraction of the TPC code.
The command will not started until the high low byte of the register has been written.
Status Register A[3:1] = 001, Read only:
INT (Interrupt): This bit = 1 when the interrupt pin (XINTN) becomes active (low).
DRQ (DMA request): This bit = 1 when DMA request input (DRQN) becomes active (low).
RBE (Receive buffer empty): This bit = 1 when receive buffer is empty, the receive buffer will set to
empty during reset.
RBF (Receive buffer full): This bit = 1 when receive buffer is full.
TBE (Transmit buffer empty): This bit = 1 when transmit buffer is empty, the transmit buffer will set to
empty during reset.
TBF (Transmit buffer full): This bit = 1 when transmit buffer is full.
Control Register A[3:1] = 001, Read/Write:
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
BIT
15
INT
BIT
15
0
0
BIT
Register Description
14
DRQ
PID code
BIT
0
14
0
BIT
13
BIT
0
12
BIT
13
-
-
BIT
11
0
BIT
12
-
-
BIT
10
RBE
BIT
-
11
BIT
1
9
BIT
RBF TBE TBF
BIT
8
-
10
0
BIT 7
RST
BIT 9 BIT 8
0
0
1
- 7 -
PWD
0
BIT 6
0
0
BIT
0
7
-
SIEN DAKEN NO_CRC
BIT 5
Data size
0
BIT
0
6
-
Publication Release Date: May 13, 2005
BIT 4
BIT
0
5
-
0
BIT
0
4
-
BIT 3
0
BIT
0
3
-
W86L387D
BIT
0
2
-
BIT
1
2
BSY_CNT
Revision A1
BIT
0
BIT
1
-
0
1
BIT
BIT
0
0
-
1
0