M66291GP#201 Renesas Electronics America, M66291GP#201 Datasheet - Page 83

• Manufacturer Part Number: M66291GP#201
• Description: IC USB CONTROLLER GEN-PUR 48LQFP
• Manufacturer: Renesas Electronics America

Specifications of M66291GP#201

• Package / Case: 48-LQFP
• Mounting Type: Surface Mount
• Current - Supply: 30mA
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -20°C ~ 85°C
• Interface: Serial
• Controller Type: USB 2.0 Controller
• Lead Free Status / RoHS Status: Not Compliant

M 6 6 2 9 1 G P / H P
3.2 FIFO Buffer
3.2.1
3.2.2
R e v 1 . 0 1
control transfer.
assigned arbitrary byte count in 64-byte unit against each endpoint.
FIFO Buffer Configuration
Buffer Access
The M66291 has 6 endpoints available for bulk/interrupt/isochronous transfers in addition to endpoint 0 for
The M66291 is equipped with a total of 3 Kbytes FIFO that can be used as the buffer of the endpoint and can be
The endpoint buffer can be set for double buffer configuration and continuous transmit/receive mode. Each
buffer configuration is set by the registers as follows:
The buffers of endpoints 0 to 6 can be accessed by the four data registers as follows:
<EP0_FIFO Data Register>
<CPU_FIFO Data Register >
<Dn_FIFO Data Register >
These four data registers can be set independently to 8-bit/16-bit mode by the Octl bit.
2 0 0 4 . 1 1 . 0 1
Endpoint 0:
Endpoint 1~6:
• Control Transfer Control Register
• EP0 Packet Size Register
• EP0_FIFO Continuous Transmit Data Length Register
• EPi Configuration Register 0
• EPi Configuration Register 1
• Quantity : 1 piece
• Exclusively used for endpoint 0
• Quantity : 1 piece
• Shared with endpoints 1 to 6 (specified by the CPU_EP bits)
• Quantity : 2 pieces
• Shared with endpoints 1 to 6 (specified by the DMA_EP bits)
• Can be accessed by DMAC
p a g e 8 3 o f 1 2 2