Toshiba TLCS-900/H1 Series Manual page 219

3.10.3.14 EPx_SIZE Register (x: 0 to 7)
EP0_SIZE_L_A
bit Symbol
(0798H)
Read/Write
Reset State
EP1_SIZE_L_A
bit Symbol
(0799H)
Read/Write
Reset State
bit Symbol
EP2_SIZE_L_A
(079AH)
Read/Write
Reset State
EP3_SIZE_L_A
bit Symbol
(079BH)
Read/Write
Reset State
EP4_SIZE_L_A
bit Symbol
(079CH)
Read/Write
Reset State
EP5_SIZE_L_A
bit Symbol
(079DH)
Read/Write
Reset State
EP6_SIZE_L_A
bit Symbol
(079EH)
Read/Write
Reset State
EP7_SIZE_L_A
bit Symbol
(079FH)
Read/Write
Reset State
Note EP4,5,6,7_SIZE_L_A registers are not used in the TMP92CH21.
These registers have the following functions.
a) In receive mode, showing the 1-packet data number which was received correctly.
b) In transmit mode, showing payload size. Showing length value when short packet
is transferred.
It is not necessary to read this register when it is transmitting.
c) Showing dual packet mode and currently effective packet.
Each endpoint has an H (High)-register that shows upper bit 9 to bit7 of data size,
and an L (Low) register which shows lower bit 6 to bit0 and control bit of FIFO.
Each H/L register also has 2-set for dual-packet mode.
7 6
PKT_ACTIVE DATASIZE6
R R
1 0
7 6
PKT_ACTIVE DATASIZE6
R R
1 0
7 6
PKT_ACTIVE DATASIZE6
R R
1 0
7 6
PKT_ACTIVE DATASIZE6
R R
1 0
7 6
PKT_ACTIVE DATASIZE6
R R
1 0
7 6
PKT_ACTIVE DATASIZE6
R R
1 0
7 6
PKT_ACTIVE DATASIZE6
R R
1 0
7 6
PKT_ACTIVE DATASIZE6
R R
1 0
5 4
DATASIZE5 DATASIZE4 DATASIZE3
R R
0 0
5 4
DATASIZE5 DATASIZE4 DATASIZE3
R R
0 0
5 4
DATASIZE5 DATASIZE4 DATASIZE3
R R
0 0
5 4
DATASIZE5 DATASIZE4 DATASIZE3
R R
0 0
5 4
DATASIZE5 DATASIZE4 DATASIZE3
R R
0 0
5 4
DATASIZE5 DATASIZE4 DATASIZE3
R R
0 0
5 4
DATASIZE5 DATASIZE4 DATASIZE3
R R
0 0
5 4
DATASIZE5 DATASIZE4 DATASIZE3
R R
0 0
92CH21-217
TMP92CH21
3 2 1
DATASIZE2 DATASIZE1
R R R
1 0 0
3 2 1
DATASIZE2 DATASIZE1
R R R
1 0 0
3 2 1
DATASIZE2 DATASIZE1
R R R
1 0 0
3 2 1
DATASIZE2 DATASIZE1
R R R
1 0 0
3 2 1
DATASIZE2 DATASIZE1
R R R
1 0 0
3 2 1
DATASIZE2 DATASIZE1
R R R
1 0 0
3 2 1
DATASIZE2 DATASIZE1
R R R
1 0 0
3 2 1
DATASIZE2 DATASIZE1
R R R
1 0 0
0
DATASIZE0
R
0
0
DATASIZE0
R
0
0
DATASIZE0
R
0
0
DATASIZE0
R
0
0
DATASIZE0
R
0
0
DATASIZE0
R
0
0
DATASIZE0
R
0
0
DATASIZE0
R
0
2009-06-19