SH7670 Datasheet, PDF (712/1292 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7670 Series

Section 17 USB 2.0 Host/Function Module (USB)
Initial
Bit
Bit Name
Value R/W Description
5
SIGN
0
R/W*¹ Setup Transaction Error Interrupt Status
Indicates the status of the setup transaction error
interrupt when the host controller function is selected.
0: SIGN interrupts not generated
1: SIGN interrupts generated
This module detects the SIGN interrupt when ACK
response is not returned from the peripheral device
three consecutive times during the setup transactions
issued by this module, and sets this bit to 1. Here, if
software has set the corresponding interrupt enable bit
to 1, this module generates the SIGN interrupt.
Specifically, this module detects the SIGN interrupt
when any of the following response conditions occur
for three consecutive setup transactions.
• Timeout is detected when the peripheral device
has returned no response.
• A damaged ACK packet is received.
• A handshake other than ACK (NAK, NYET, or
STALL) is received.
When the function controller function is selected, the
read value is invalid.
4
SACK
0
R/W*¹ Setup Transaction Normal Response Interrupt Status
Indicates the status of the setup transaction normal
response interrupt when the host controller function is
selected.
0: SACK interrupts not generated
1: SACK interrupts generated
This module detects the SACK interrupt when ACK
response is returned from the peripheral device during
the setup transactions issued by this module, and sets
this bit to 1. Here, if software has set the
corresponding interrupt enable bit to 1, this module
generates the SACK interrupt.
Rev. 1.00 Nov. 14, 2007 Page 686 of 1262
REJ09B0437-0100