h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 615

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

18.3.5
EPDIR0 controls the direction of data transfer for endpoints other than endpoint 0 of the USB
function core. In this LSI, EP1, EP3 and EP4 must be specified as host input transfers, EP5 as a
host output transfer, and EP2 as either a host input transfer or host output transfer.
EPDIR0 is initialized to H'3C by a system reset or function software reset (see section 18.3.16,
USB Control Registers 0 and 1 (USBCR0, USBCR1)).
Bit
7
6
5
4
3
2
1, 0
Bit Name
—
EP5DIR
EP4DIR
EP3DIR
EP2DIR
EP1DIR
—
Endpoint Direction Register 0 (EPDIR0)
Initial Value R/W
0
0
1
1
1
1
All 0
R
R/W
R/W
R/W
R/W
R/W
R
Description
Reserved
This bit is always read as 0 and cannot be modified.
Endpoint 5 Data Direction Control Flag
Controls the data transfer direction of endpoint 5.
0: Endpoint 5 is specified as host output transfer
1: Setting prohibited
Endpoint 4 Data Direction Control Flag
Controls the data transfer direction of endpoint 4.
0: Setting prohibited
1: Endpoint 4 is specified as host input transfer
Endpoint 3 Data Direction Control Flag
Controls the data transfer direction of endpoint 3.
0: Setting prohibited
1: Endpoint 3 is specified as host input transfer
Endpoint 2 Data Direction Control Flag
Controls the data transfer direction of endpoint 2.
0: Endpoint 2 is specified as host output transfer
1: Endpoint 2 is specified as host input transfer
Endpoint 1 Data Direction Control Flag
Controls the data transfer direction of endpoint 1.
0: Setting prohibited
1: Endpoint 1 is specified as host input transfer
Reserved
These bits are always read as 0 and cannot be
modified.
Section 18 Universal Serial Bus Interface (USB)
Rev. 3.00 Jan 25, 2006 page 563 of 872
REJ09B0286-0300