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CHAPTER 17 USB FUNCTION
■ RSIZE0
The RSIZE0 register indicates the size of the latest data transferred at end point 0 (CONTROL
OUT end point). The address of the RSIZE0 register is 0006_0040
Figure 17.2-13 shows the RSIZE0 register.
Address:0006-0040
H
Table 17.2-6 lists the bits of the RSIZE0 register and their functions.
Table 17.2-6 Bits of the RSIZE0 Register
Bit name
RSIZE[3:0]
The RSIZE0 bits are updated when the USB function macro program transmits an ACK signal.
392
Figure 17.2-13 RSIZE0 Register
15
14
13
12
11
10
Polarity
-
9
8
7
6
5
4
Function
These bits indicate the size of the latest data
transferred at end point 0 (CONTROL OUT end
point).
.
H
3
2
1
0
Initial value
R
R
R
R
S
S
S
S
I
I
I
I
XXXXXXXXXXXX0000
Z
Z
Z
Z
E
E
E
E
3
2
1
0
R
R
R
R
B
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