Motorola MSC8101 ADS User's Guide Page 273

  • Download
  • Add to my manuals
  • Print
  • Page
    / 346
  • Table of contents
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 272
Programming Sheets
MSC8101 User’s Guide A-19
PSDMR
WRC0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
RFRC2
BL
BSMA1 BSMA2 RFRC0
0123456789101112131415
PBI OP1 OP2
SDAM0 SDAM1 SDAM2 RFRC1
SDA102SDA100
BSMA0
OP0RFEN
SDA101 PRETO-
MEMORY CONTROLLER
PSDMR
(page 1 of 2)
60x Bus SDRAM Mode Register
Address: 0x10190
Reset: 0
Read/Write
EAMUX
BUFCMD
CL0 CL1
PRETO
-
PRETO-
ACT0 ACT1 ACT2
ACTTO- ACTTO- ACTTO-
RW0 RW1 RW2
LDOTO- LDOTO-
PRE0 PRE1
WRC1
000 Normal operation
OP[0–2] – SDRAM Operation
, Bits 2–4
100 Precharge bank (debug)
001 CBR refresh (SDRAM) 101
Precharge all banks (SDRAM)
010 Self refresh (debug) 110 Activate bank (debug)
011
Mode register write (SDRAM)
111 Read/write (debug)
000 A1[2–14]
BSMA[0–2] – Bank Select Multiplexed Address Line
, Bits 8–10
100 A[16–18]
001 A[13–15] 101 A[17–19]
010 A[14–16] 110 A[18–20]
011 A[15–17] 111 A[19–21]
000 A[13–31]
SDAM[0–2] – Address Multiplex Size
, Bits 5–7
External
A[5–23]
PowerPC Bus
Address Pin
SDAM
Signal
Driven on
External Pin
011 A[16–31]
External
A[5–20]
PowerPC Bus
Address Pin
SDAM
Signal
Driven on
External Pin
001 A[14–31] A[5–22] 100 A[17–31] A[5–19]
010 A[15–31] A[5–21] 101 A[18–31] A[5–18]
000 A12 010 A10 100 A8 110 A6
SDA10[0–2] – A10 Control
, Bits 11–13
PBI = 0
001 A11 011 A9 101 A7 111 A5
PBI = 1
000 A10 010 A8 100 A6 110 A4
001 A9 011 A7 101 A5 111 A3
See Sheet 2 – Memory Controller – PSDMR
1 Refresh services are required
0 Refresh services are not required
RFEN – Refresh Enable, Bit 1
1 Page-based interleaving (normal operation)
0 Bank-based interleaving
PBI – Page-Based Interleaving, Bit 0
Page view 272
1 2 ... 268 269 270 271 272 273 274 275 276 277 278 ... 345 346

Comments to this Manuals

No comments