H8SXSLASH1663R datasheet(1056/1504 Pages) RENESAS

1056 / 1504 page

Section 20 USB Function Module (USB)

Rev. 2.00 Sep. 24, 2008 Page 1024 of 1468

REJ09B0412-0200

(1) Transition from normal operation to stall

(1-1)

Transaction request

USB

Reference

(1-2)

STALL handshake

Stall

To (2-1) or (3-1)

Normal status restored

(1-3)

(2) When Clear Feature is sent after EPSTL is cleared

(2-1)

STALL handshake

Transaction request

(2-2)

Clear Feature command

(2-3)

(3) When Clear Feature is sent before EPSTL is cleared to 0

(3-1)

1. 1 written to EPSTL

by application

1. IN/OUT token

received from host

2. EPSTL referenced

1. Transmission of

STALL handshake

1. Internal status bit

cleared to 0

1. Internal status bit

cleared to 0

2. EPSTL not changed

1. 1 set in EPSTL

2. Internal status bit

set to 1

3. Transmission of

STALL handshake

1. EPSTL cleared to 0

by application

2. IN/OUT token

received from host

3. Internal status bit

already set to 1

4. EPSTL not

referenced

5. Internal status bit

not changed

To (1-2)

Internal status bit

EPSTL

→ 1

Internal status bit

EPSTL

Internal status bit

→ 1

EPSTL

Internal status bit

EPSTL

→ 0

Internal status bit

EPSTL

Internal status bit

→ 0

EPSTL

Internal status bit

→ 0

EPSTL

Figure 20.20 Forcible Stall by Application

H8SX/1663R Datasheet(PDF) 1056 Page - Renesas Technology Corp

H8SX/1663R Datasheet(HTML) 1056 Page - Renesas Technology Corp

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL