Read Sharp UP-600 / UP-700 (serv.man20) Service Manual online
CHAPTER 1. GENERAL DESCRIPTION
This control board is an Ethernet board that supports TCP/IP proto-
col.
col.
CHAPTER 2. BLOCK DIAGRAM
When writing data into FLASH, switch /CS0to EP-ROM and /CS3
to FLASH Memory.
to FLASH Memory.
CHAPTER 3. CONFIGURATION
CPU :
[HitachiSH-2 Series SH7014 (20MHz)]
[HitachiSH-2 Series SH7014 (20MHz)]
As external memory spaces, CS0 - CS3 and DRAM space are pro-
vided. This board assigns FLASH Memory to CS0, SRAM to CS1,
dual-port SRAM to CS2, and LAN controller to CS3.
vided. This board assigns FLASH Memory to CS0, SRAM to CS1,
dual-port SRAM to CS2, and LAN controller to CS3.
LAN Controller : [RealtekRTL8019AS(20MHz)]
LAN controller is assigned to CS space.
Because of pseudo ISA connection, each register is assigned to ad-
dresses of H00C00300 and after.
dresses of H00C00300 and after.
ROM(FLASH Memory) :
[SharpLH28F004BVT(4Mbits)]
[SharpLH28F004BVT(4Mbits)]
<Access Time = 90ns>
ROM (FLASH Memory) is assigned to CS0 space.
Data is written onto FLASH Memory from UV-EPROM by switching
the CSO space to UV-EPROM and the CS3 space to FALSH Mem-
ory.
the CSO space to UV-EPROM and the CS3 space to FALSH Mem-
ory.
MAC Address is written on FLASH Memory.
•
Company code is assigned to "08001FH".
•
The serial number and adjustment byte are stored in an area of 4
bytes from the address H’0007C000.
<The serial number is acquired according to Sharp’s in-house
specification(SS).>
bytes from the address H’0007C000.
<The serial number is acquired according to Sharp’s in-house
specification(SS).>
RAM : [S-RAM 1Mbits]
<Access Time=70ns>
Assigned to CS1 space.
[IDT Dual-Port SRAM IDT7134]<Access Time=55ns>
Assigned to CS2 space.
The IDT7134 does not have any LOGICiBusy or Semaphorej, access
to the same address from both sides is inhibited.
to the same address from both sides is inhibited.
Pulse Trans : [Pulse78Z034]
It is used for the 10Base-T standard and has a choke coil built in at
the output side.
the output side.
Dual-Port
RAM
4k byte
CN
RJ-45
Data Bus
Address Bus
Da
ta
ta
Bus
LOGIC
/CS1
/CS2
/INTHR
/INTHW
/INTSR
/INTSW
10MHz
/CS0
/CS0
/CS3
/CS3
/CS2
/CS1
/CS0
/HWACK
/HRACK
/SWRQ
/SRRQ
CPU
(SH-2)
/DPCS,
/WR,/RD
/WR,/RD
Address
Bus
LD0~LD7
LA0~LA11
FLASH
512k byte
LD0~LD7
LA0~LA18
LD0~LD7
LA0~LA18
SRAM
128k byte
LD0~LD7
LA0~LA19
LD0~LD7
LA0~LA18
LAN Cnt.
(8bit-Bus)
EP-ROM
(Writing in
to FLASH)
512k byte
>>>>> USE FONT <<<<<
Helvetica/ Helvetica-Condensed/ Century-Schoolbook/ Symbol & OriginalFonts: (RingWorld2/RingFont2/Pa
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