HD6417720BP133BV Renesas Electronics America, HD6417720BP133BV Datasheet - Page 918

• Manufacturer Part Number: HD6417720BP133BV
• Description: SH3-DSP, WITH USB AND LCDC, PB-F
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7700r

Specifications of HD6417720BP133BV

• Core Processor: SH-3 DSP
• Core Size: 32-Bit
• Speed: 133MHz
• Connectivity: FIFO, I²C, IrDA, MMC, SCI, SD, SIO, SIM, USB
• Peripherals: DMA, LCD, POR, WDT
• Number Of I /o: 117
• Program Memory Type: ROMless
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.4 V ~ 1.6 V
• Data Converters: A/D 4x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -

Section 25 USB Function Controller (USBF)
25.8.3
When a stall setting is made with the Set Feature command, or in the event of a USB specification
violation, the USB function controller automatically sets the internal status bit for the relevant
endpoint without regard to the corresponding bit in EPSTL, and returns a stall handshake (1-1 in
figure 25.19).
Once an internal status bit is set, it remains set until cleared by a Clear Feature command from the
host, without regard to the corresponding bit in EPSTL. After a bit is cleared by the Clear Feature
command, the corresponding bit in EPSTL is referenced (3-1 in figure 25.19). The USB function
controller continues to return a stall handshake while the internal status bit is set, since the internal
status bit is set even if a transaction is executed for the corresponding endpoint (2-1 and 2-2 in
figure 25.19). To clear a stall, therefore, the internal status bit must be cleared with a Clear Feature
command (3-1 in figure 25.19). In this time, if set by the application, the corresponding bit in
EPSTL should also be cleared (2-1 in figure 25.19).
Page 858 of 1414
(1) Transition from normal operation to stall
(2) When transaction is performed when internal status bit is set, and Clear Feature is sent
(3) When Clear Feature is sent before transaction is performed
Automatic Stall by USB Function Controller
(2-2)
(1-1)
(2-1)
(3-1)
STALL handshake
Transaction request
STALL handshake
Clear Feature command
Figure 25.19 Automatic Stall by USB Function Controller
Internal status bit
Internal status bit
Internal status bit
Internal status bit
0 → 1
1 → 0
1
1
Stall status maintained
Normal status restored
To (2-1) or (3-1)
EPnSTL
EPnSTL
EPnSTL
EPnSTL
0
0
0
0
1. In case of USB
1. EPnSTL cleared to
2. IN/OUT token
3. Internal status bit
4. EPnSTL not
5. Internal status bit
1. Transmission of
1. Internal status bit
2. EPnSTL not changed
SH7720 Group, SH7721 Group
specification
violation, etc., USB
function module
stalls endpoint
automatically
0 by application
received from host
already set to 1
referenced
not changed
STALL handshake
cleared to 0
R01UH0083EJ0400 Rev. 4.00
Sep 21, 2010