r8a77850anbg Renesas Electronics Corporation., r8a77850anbg Datasheet - Page 441

• Manufacturer Part Number: r8a77850anbg
• Description: Renesas 32-bit Risc Microcomputer Superh? Risc Engine Family
• Manufacturer: Renesas Electronics Corporation.

Figure 11.11 SRAM Interface Wait Timing (Read-Strobe/Write-Strobe Timing Setting)
CLKOUT
A25-A0
CSn
R/W
RD
D31-D0
WEn
D31-D0
(ADS=000)
D31-D0
(ADS=001 to 111)
BS
Notes: 1.
TS1: CSn assertion - WEn assertion delay cycle
2.
TS1: CSn assertion - RD assertion delay cycle
TAS1: Address setup wait
TAS1: Address setup wait
When CSnBCR RDSPL is set to 1
When CSnWCR BSH is set to 1
CSnWCR ADS=001
CSnWCR BSH=001
TAS1
CSnWCR WTS = 001
CSnWCR RDS = 001
CLKOUT
T1
TS1
*
2
Tw
CSnWCR IW = 0100
CSnWCR IW = 0100
Tw: Access wait
Tw: Access wait
Tw
Tw
CLKOUT
TH1, TH2: WE negation - CSn negation delay cycle
TH1, TH2: RD negation - CSn negation delay cycle
Tw
T2
Rev.1.00 Jan. 10, 2008 Page 411 of 1658
CSnWCR WTH = 010
CSnWCR RDH = 010
11. Local Bus State Controller (LBSC)
TH1
*
1
TAH1: Address hold wait
TAH1: Address hold wait
CSnWCR AHS = 001
CSnWCR ADH = 001
TH2
TAH1
REJ09B0261-0100