HD64F2149YV datasheet(628/1075 Pages) RENESAS

628 / 1075 page

Section 18A Host Interface X-Bus Interface (XBS)

Rev. 3.00 Jan 18, 2006 page 600 of 1044

REJ09B0280-0300

Table 18A.10 HIRQ Setting/Clearing Conditions

Host Interrupt

Signal

Setting Condition

Clearing Condition

HIRQ11

(P43)

Internal CPU reads 0 from bit P43DR, then

writes 1

Internal CPU writes 0 in bit P43DR, or

host reads output data register 2

HIRQ1

(P44)

Internal CPU reads 0 from bit P44DR, then

writes 1

Internal CPU writes 0 in bit P44DR, or

host reads output data register 1

HIRQ12

(P45)

Internal CPU reads 0 from bit P45DR, then

writes 1

Internal CPU writes 0 in bit P45DR, or

host reads output data register 1

HIRQ3

(PB0)

Internal CPU reads 0 from bit PB0ODR,

then writes 1

Internal CPU writes 0 in bit PB0ODR,

or host reads output data register 3

HIRQ4

(PB1)

Internal CPU reads 0 from bit PB1ODR,

then writes 1

Internal CPU writes 0 in bit PB1ODR,

or host reads output data register 4

Slave CPU

Master CPU

Write to ODR

Write 1 to P4DR

P4DR = 0?

Yes

All bytes

transferred?

HIRQ output high

HIRQ output low

Interrupt initiation

ODR read

Hardware operations

Software operations

Figure 18A.3 HIRQ Output Flowchart (Example of Channels 1 and 2)

HIRQ Setting/Clearing Contention: If there is contention between a P4DR or PBODR

read/write by the CPU and P4DR (HIRQ11, HIRQ1, HIRQ12) or PBODR (HIRQ3, HIRQ4)

clearing by the host, clearing by the host is held pending during the P4DR or PBODR read/write

by the CPU. P4DR or PBODR clearing is executed after completion of the read/write.

HD64F2149YV Folha de dados(PDF) 628 Page - Renesas Technology Corp

HD64F2149YV Folha de dados(HTML) 628 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

Folha de dados Download

Ligação URL