HD6417641 RENESAS [Renesas Technology Corp], HD6417641 Datasheet - Page 420

• Manufacturer Part Number: HD6417641
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 12 Bus State Controller (BSC)
The conditions to shift to the power-down mode are as follows.
• Write or read access (including instruction fetch) occurs to the memory other than the
• Read or write access occurs to the control register with the address H'Axxx xxxx or to the
Rev. 4.00 Sep. 14, 2005 Page 370 of 982
REJ09B0023-0400
SDRAM, which is to be set to the power-down mode.
peripheral I/O register.
RASL, RASU
CASL, CASU
A12/A11*
D31 to D0
A25 to A0
DACKn*
RD/WR
DQMxx
CKIO
CKE
CSn
BS
1
2
Power-down
Notes: 1. Address pin to be connected to pin A10 of SDRAM.
Figure 12.32 Power-Down Mode Access Timing
2. The waveform for DACKn is when active low is specified.
Tnop
Tr
Tc1
Td1
Tde
Tap
Power-down