SH7751 Datasheet, PDF (1017/1224 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

22. PCI Controller (PCIC)
The PCIPINT register is initialized to H'00000000 at a power-on reset. It is not initialized at a
software reset. When an interrupt is detected, the bit corresponding to the content of that interrupt
is set to 1. Each interrupt detection bit can be cleared to 0 by writing 1 to it (write clear).
The power state D0 interrupt is not generated at a power-on reset.
Bits 31 to 2—Reserved: These bits always return 0 when read. Always write 0 to these bits when
writing.
Bit 1—Power state D3 (PWRST_D3): Transition request to power-down mode interrupt for this
LSI.
Bit 0—Power state D0 (PWRST_D0): Restore from power-down mode interrupt for this LSI.
Note: The power states D3, D0 are not masked even when the interrupt mask bit is set ON.
22.2.36 PCI Power Management Interrupt Mask Register (PCIPINTM)
Bit: 31
30
29
...
11
10
9
8
—
—
—
...
—
—
—
—
Initial value:
0
0
0
...
0
0
0
0
PCI-R/W: —
—
—
...
—
—
—
—
PP Bus-R/W: R
R
R
...
R
R
R
R
Bit:
7
6
5
4
3
2
1
0
—
—
—
—
—
— DPERR_ DPERR_
WT
RD
Initial value:
0
0
0
0
0
0
0
0
PCI-R/W: —
—
—
—
—
—
—
—
PP Bus-R/W: R
R
R
R
R
R
R/W
R/W
The PCI power management interrupt mask register (PCIPINTM) sets the interrupt mask for the
power management interrupts. This 32-bit read/write register can be accessed from the PP bus.
The PCIPINTM register is initialized to H'00000000 at a power-on reset. It is not initialized at a
software reset.
Interrupt masks can be set for both the interrupt for a transition to the power state D3 (power down
mode) and recovery to the power state D0 (normal status). Setting the respective bit to 0 disables
the interrupt and setting it to 1 enables the interrupt.
Rev.4.00 Oct. 10, 2008 Page 919 of 1122
REJ09B0370-0400