DF61654N50FTV Renesas Electronics America, DF61654N50FTV Datasheet - Page 744

• Manufacturer Part Number: DF61654N50FTV
• Description: IC H8SX/1654 MCU FLASH 120TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of DF61654N50FTV

• Core Processor: H8SX
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 75
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 120-TQFP, 120-VQFP
• For Use With: HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)3DK1657 - DEV EVAL KIT FOR H8SX/1657
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 15 USB Function Module (USB)
15.7.3
When a stall setting is made with the Set Feature command, or in the event of a USB specification
violation, the USB function module automatically sets the internal status bit for the relevant
endpoint without regard to the EPSTL register, and returns a stall handshake (1-1 in figure 15.19).
Once an internal status bit is set, it remains set until cleared by a Clear Feature command from the
host, without regard to the EPSTL register. After a bit is cleared by the Clear Feature command,
EPSTL is referenced (3-1 in figure 15.19). The USB function module 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 15.19). To clear a stall, therefore,
the internal status bit must be cleared with a Clear Feature command (3-1 in figure 15.19). If set
by the application, EPSTL should also be cleared (2-1 in figure 15.19).
Rev.1.00 Sep. 08, 2005 Page 694 of 966
REJ09B0219-0100
(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 Module
(1-1)
(2-1)
(2-2)
(3-1)
STALL handshake
Transaction request
STALL handshake
Clear Feature command
Figure 15.19 Automatic Stall by USB Function Module
Internal status bit
Internal status bit
Internal status bit
Internal status bit
0
1
1
1
1
0
Stall status maintained
Normal status restored
To (2-1) or (3-1)
EPSTL
EPSTL
EPSTL
EPSTL
0
0
0
0
1. In case of USB
1. EPSTL cleared to 0
2. IN/OUT token
3. Internal status bit
4. EPSTL not
5. Internal status bit
1. Transmission of
1. Internal status bit
2. EPSTL not changed
specification
violation, etc., USB
function module
stalls endpoint
automatically
by application
received from host
already set to 1
referenced
not changed
STALL handshake
cleared to 0