Hitachi H8S/2215 Series Hardware Manual page 21

Section
15.8 USB External Circuit
Example
Figure 15.27 USB
External Circuit in Bus-
Powered Mode (When On-
Chip Transceiver is Used)
Figure 15.28 USB
External Circuit in Self-
Powered Mode (When On-
Chip Transceiver is Used)
Figure 15.29 USB
External Circuit in Bus-
Powered Mode (When
External Transceiver is
Used)
Figure 15.30 USB
External Circuit in Self-
Powered Mode (When
External Transceiver is
Used)
15.9.7 EP3o Isochronous
Transfer
Figure 15.32 EP3o Date
Reception
Page
Description
Note *3 amended
521 to
524
In HD64F2215, HD6432215A, HD6432215B, and HD6432215C, Pxx should be assigned
* 3
to an output port as the D+ pull-up control pin.
In HD64F2215U, in which on-chip ROM can be programmed by using the USB, P36
should be used as the D+ pull-up control pin.
Figure amended
528
[In frame N]
Receive USB
data (1)
[In frame N+1]
Receive USB
data (2)
[In frame N+2]
Receive USB
data (3)
Internal flag (A-side)
EP3o FIFO A
TF TS
Data (1) Modify
Internal flag (B-side)
EP3o FIFO B
— — —
Next frame
EP3o FIFO A Internal flag (A-side)
TF TS
Data (1)
Internal flag (B-side)
EP3o FIFO B
Data (2) TF TS
Modify
Next frame
EP3o FIFO A Internal flag (A-side)
Data (3)
TF TS Modify
Internal flag (B-side)
TF TS
EP3o FIFO B
Data (2)
Rev. 3.0, 10/02, page xxi of lviii
UIFR1
No change
— —
UIFR1
A-side flag update
TF TS
Can be read
Data (1) can be read in
frame [N+1]
UIFR1
B-side flag update
TF TS Can be read
Data (2) can only be read in
frame [N+2]