Topic       : Documentation of the CT60
Author      : Didier MEQUIGNON
Version     : Version 2.00 (December 11, 2010)
Subject     : Documentation
Nodes       : 135
Index Size  : 3664
HCP-Version : 3
Compiled on : Atari
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View Ref-File10.2.4  SDR60 REGISTERS DETAILS                                   CT60

 SDRAM EEPROM I2C Port : 

EECL (EEprom serial CLock)
 Write at $F0000000 : WRITE 0 to EECL line.
 Write at $F0400000 : WRITE 1 to EECL line.
 Read  at $F0000000 : READ from the EECL line on the D1 CPU data line.

EEDA (EEprom serial DAta)
 Write at $F0800000 : WRITE 0 to EEDA line.
 Write at $F0C00000 : WRITE 1 to EEDA line.
 Read  at $F0000000 : READ from the EEDA line on the D0 CPU data line.

 060 THERMAL 3-wires Port : 

THCS (THermal Chip Select)
 Write at $F1000000 : WRITE 0 to CS line.
 Write at $F1400000 : WRITE 1 to CS line.

THCK (THermal ClocK)
 Write at $F1800000 : WRITE 0 to CLK line.
 Write at $F1C00000 : WRITE 1 to CLK line.

THDA (THermal DAta)
 Read  at $F1000000 : Read from the DO line on the D0 CPU data line.

 INTERRUPT REGISTER : 

IVR (Interrupt Vector Register)
 Read at $F3000000

 SDRAM CONTROLLER : 

SDCNF (SDram CoNFiguration)
 Write a long at $F2xx0000 with xx = [A23..A16]

Chip DensitY (EEPROM Byte #3 & #4)
A23 = cdy2                                           EEPROM
A22 = cdy1                                       Byte#3  Byte#4
     [cdy2,cdy1] = 0,0 --> 8Mx8 / 8x16              $0C $09
                 = 0,1 --> 16Mx8                    $0C $0A
                 = 1,0 --> 16Mx16                   $0D $09
                 = 1,1 --> 32Mx8 / 32Mx16           $0D $0A

Number of DIMM Banks (EEPROM Byte #5)
A20 = nrb
     [nrb] = 0 --> 1 bank
           = 1 --> 2 banks

Module DensitY (EEPROM Byte #31 * EEPROM Byte #5)
A19 = mdy2
A18 = mdy1
     [mdy2,mdy1,mdy0] = 0,0 -->  64MB
                      = 0,1 --> 128MB
                      = 1,0 --> 256MB
                      = 1,1 --> 512MB

ReFresh RaTe (EEPROM Byte #12)
A16 = rfrt
     [rfrt] = 0 --> 15.625 uS
            = 1 --> 7.8125 uS