HD6417727F160CV Renesas Electronics America, HD6417727F160CV Datasheet - Page 818

• Manufacturer Part Number: HD6417727F160CV
• Description: IC SH MPU ROMLESS 240QFN
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417727F160CV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 160MHz
• Connectivity: FIFO, SCI, SIO, SmartCard, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 104
• Program Memory Type: ROMless
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.7 V ~ 2.05 V
• Data Converters: A/D 6x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 240-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 24 USB HOST Module
24.5.3
When a low-speed device connected to the root port is disconnected while the data is transmitted
to the host, this USB controller might hung. Therefore, be sure not to disconnect the low-speed
device while the data is transmitted. If that disconnection is detected, reset USB (write 00 to the
HCFS bit in the HcControl register).
24.6
The operation of the controller might become stuck if a software reset (1 written to the HCR bit in
the HcCommandStatus register) or USB reset (00 written to the HCFS bit in the HcControl
register) is performed while the USB host controller is carrying out a master memory write.
Master memory write operations are performed at the start of frame (SOF) and during data
transfer. To prevent the host controller from becoming stuck, use one of the following methods:
1. Write the program so that the SDF timing is derived from the HcFmRemaining value and a
2. If you issue a reset for the USBH module after applying a software reset or USB reset, no stack
24.7
The USB host controller of the SH7727 and SH7727B may erroneously recognize an SE0 state
during data transfer. As a result, the controller incorrectly detects a device not connected state
(erroneous device not connected detection) even though the device actually is connected. The
following methods may be used to work around this problem.
1. Use the low speed (1.5 Mbps) mode. Erroneous device not connected detection does not occur
2. When using the full speed (12 Mbps) mode, use method (a) or (b) below to avoid erroneous
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REJ09B0254-0600
When HUBs are connected in multiple steps, a dribble bit may be added at the end of the
packet. In this case, this USB controller might not correctly recognize the NAK/STALL
handshake. Be sure not to connect HUB to decrease steps so that no dribble bit occurs.
software reset or USB reset is applied around the middle of a frame in which all list processing
is disabled.
will occur. (Set the module software reset register (SRSTR).)
during low speed data transfer.
device not connected detection.
a. Ensure that the D+, D– crossover voltage output by the USB function device exceeds
b. Ensure that received data strings do not contain more than 28 consecutive 0 bits.
SH7727 AVcc_USB × 0.55 (V).
Restrictions on the Software Reset and USB Reset
Notes on Using USB Host with Versions Previous to the SH7727C
Restrictions when a Low-Speed Device is Disconnected