Epson Research and Development
Page 175
Vancouver Design Center
REG[1002h] bits 15-0 MediaPlug Reserved LCMD Bits [15:0]
This register is not implemented and is reserved for future expansion of the LCMD regis-
ter. A write to this register has no hardware effect. A read from this register always return
0000h.
MediaPlug CMD Register
REG[1004h]
RW
CMD Bit 7
CMD Bit 6
CMD Bit 5
CMD Bit 4
CMD Bit 3
CMD Bit 2
CMD Bit 1
CMD Bit 9
CMD Bit 0
CMD Bit 15
CMD Bit 14
CMD Bit 13
CMD Bit 12
CMD Bit 11
CMD Bit 10
CMD Bit 8
REG[1002h] bits 15-0 MediaPlug CMD Bits [15:0]
A 16-bit register for setting the MediaPlug commands. This register is handled differently
for reads and writes. The following table shows the MediaPlug description of the CMD
Register. See bit descriptions for details.
Table 8-40: MediaPlug CMD Read/Write Descriptions
Data D15 D14 D13 D12 D11 D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
Write
I[12:0]
C[2:0]
C[2:0]
Read
D
T
I[10:0]
bit 15
Dirty Bit (MediaPlug Parameter D)
This bit is set by the hardware when the command register is written.
It is cleared by hardware by the following conditions:
1. Remote-Reset (After this command has been acknowledged by remote.
2. End_Stream (After this command has been acknowledged by remote.
3. Write to DATA register if the CCC field is Write_Reg.
4. Read to DATA register if the CCC field is Read_Reg.
It is also set when the Remote Machine loses power or the cable is disconnected.
bit 14
Timeout Bit (MediaPlug Parameter T)
It is set when Watchdog is enabled and MediaPlug read or write cycle takes longer than
64, 128, 1024 cycles of MediaPlug clock depending on LCMD register settings.
It is also set when the remote is not powered.
It is cleared at the beginning of every command write by the host.
bits 13-3
Index Field (MediaPlug Parameter I)
This field is the address presented by the remote to the remote function. MediaPlug trans-
mits the entire 16-bits of the first word of the command Register as written, but I12 (D15)
and I11 (D14) are hidden from readback by the dirty bit and Watchdog error bit.
Hardware Functional Specification
Issue Date: 01/02/06
S1D13506
X25B-A-001-10
EPSON [ EPSON COMPANY ]
