CHAPTER 33:Graphics Subsystem
S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
1203
4.
Registers
There are explanations about the registers in the Graphics Subsystem, except for the registers those are
in (1) 3D Graphics Core, (2) 2D Graphics Core, (3) DDRHSSPI interface, (4) HyperBus interface, (5)
Memory Protection Unit.
4.1.
General
4.1.1.
Error Responses
The following conditions result in an error response when accessing the register:
−
Read or write access to an address with no register / no field.
−
Read or write access with transfer size other than 32-bit.
−
Write access to a register that has read-only fields only..
−
Read access to a register that has write-only fields only.
−
Write access to a register with lock property "yes" when lock status is active.
−
Non-privileged read or write access to a register when privileged status is active ( except read
access to status register, which is always allowed ).
−
Read access to lock/unlock register.
−
Write access to the lock/unlock register with ...
−
... an invalid key value.
−
... a valid key value when the freeze status is active.
−
... the lock key value when internal unlock counter is 15.
−
... the privilege key value when the privilege status is active.
−
... the un-privilege key value when the privilege status is not active.
4.1.2.
Hardware Test Register Area
The hardware test register is a register whose function is not disclosed and not expected to be used by
software developer. Do not read out or write to the register area by software operation.
The area is specified in the following table.
Any hardware or software operations would not be guaranteed if an unexpected accessing to the area
was caused in error, especially; the access changed the specified values in the table to the non-specified
values.
Table 33-6 Values for experimental register area
Offset Address
Value
Remark
0x102 0x0310
0x00000000
Write only
0x102 0x0314
-
Read only
0x102 0x0000
0x00000000
0x102 0x0004
0x0FFFFFFF
0x102 0x0008
0x00000000
0x102 0x000C
0x00000000
0x102 0x0010
0x00000000
0x102 0x0014
0x00000000
0x102 0x0018
-
Read only
Summary of Contents for S6J3200 Series
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