R1610C RDC Semiconductor, R1610C Datasheet - Page 91

• Manufacturer Part Number: R1610C
• Description: High Performance 16 Bits MCU Integrated One 10/100M Mac Controller - 3.3V Operating Voltage/2.5V Core Voltage
• Manufacturer: RDC Semiconductor

R
Data Sheet
Final Version 1.5
October 27, 2003
R
18.3
15-13 SREXT [2:0]
Register Offset:
Register Name:
Reset Value
11-8
7-4
3-0
15
Bit
12
2
1
0
SREXT [2:0]
D
D
14
SDRAMEN
MRC [3:0]
MPR [3:0]
RCD [3:0]
C
SDRAM Timing Parameter Register
C
SREF
Name
Rsvd
TWR
13
®
®
:
R
R
I
I
S
S
C
C
F6h
SDRAM Timing Parameter Register
F933h
TWR
D
D
12
S
S
Attribute
P
P
C
C
R/W
R/W
o
o
RO
R/W
R/W
R/W
R/W
R/W
m
m
m
m
u
u
n
n
i
i
11
c
c
a
a
t
t
i
i
o
o
n
n
Self-Refresh Enable.
Set 1: Enable Self-Refreshed when SDRAM is in power mode.
Reserved
SDRAM Enable.
Set 1: Enable SDRAM. (Default)
Set 0: Disable SDRAM.
Set 0: Disable Self-Refreshed. (Default)
Self-Refresh Exit Time (t
The Self-Refresh Exit Time can be programmed from 0 to 15 Clocks.
Write Recovery Time.
1: 2 Clocks cycle.
0: 1 Clock cycle.
Min. Row Cycle Time (t
It can be programmed from 0 to 15 Clocks.
Min. Pre-charge Time (t
It can be programmed from 0 to 15 Clocks.
Row to Column Delay time (t
It can be programmed from 0 to 15 Clocks.
10
MRC [3:0]
9
0 1 -------- 4Mx16 bits
1 0 -------- Reserved
1 1 -------- Reserved
8
7
RC
RP
SREX
,).
,).
MPR [3:0]
RCD).
6
).
Description
5
Fast Ethernet RISC Processor
4
3
RCD [3:0]
2
1
R1610C
0
91