ez80f92 ZiLOG Semiconductor, ez80f92 Datasheet - Page 199
![no-image](/images/no-image-200.jpg)
ez80f92
Manufacturer Part Number
ez80f92
Description
Ez80acclaim Flash Microcontrollers
Manufacturer
ZiLOG Semiconductor
Datasheet
1.EZ80F92.pdf
(261 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ez80f92AZ020SG
Manufacturer:
Zilog
Quantity:
20
Company:
Part Number:
ez80f92AZ020SG
Manufacturer:
MAX
Quantity:
47
Company:
Part Number:
ez80f92AZ020SG
Manufacturer:
ZILOG
Quantity:
3
- Current page: 199 of 261
- Download datasheet (4Mb)
PS015313-0508
RAM Control Registers
RAM Control Register
The internal data RAM can be disabled by clearing the RAM_EN bit. The default, upon
RESET, is for RAM to be enabled.
Table 111. RAM Control Register; (RAM_CTL = 00B4h)
RAM Address Upper Byte Register
The RAM_ADDR_U register defines the upper byte of the address for the on-chip RAM.
If enabled, RAM addresses assume priority over all Chip Selects. The external Chip Select
signals are not asserted if the corresponding RAM address is enabled.
Table 112. RAM Address Upper Byte Register; (RAM_ADDR_U = 00B5h)
Bit
Reset
CPU Access
Note: R/W = Read/Write; R = Read Only.
Bit
Position
7
RAM_EN
[6:0]
Bit
Reset
CPU Access
Note: R/W = Read/Write.
Bit
Position
[7:0]
RAM_ADDR_U
Value
0
1
0000000 Reserved
Value Description
00h–
FFh
R/W
R/W
This byte defines the upper byte of the RAM address. On-chip
RAM is prioritized over all Memory Chip Selects. If the enabled
RAM and Chip Select addresses overlap, the external Chip
Select is not asserted.
7
1
7
1
Description
On-chip general-purpose RAM is disabled
On-chip general-purpose RAM is enabled
R/W
R
6
0
6
1
R/W
R
5
0
5
1
R/W
R
4
0
4
1
R/W
R
3
0
3
1
Product Specification
Random Access Memory
R/W
R
2
0
2
1
eZ80F92/eZ80F93
R/W
R
1
0
1
1
R/W
R
0
0
0
1
192
Related parts for ez80f92
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ez80f91](/images/no-image3.png)
Part Number:
Description:
Ez80 Acclaimplus!? Connectivity Assp Ez80f91 Assp
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![ez80f915005modg](/images/no-image3.png)
Part Number:
Description:
Ez80f91 Mini Enet Module
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z90231](/images/no-image3.png)
Part Number:
Description:
Z90233, Z90234, And Z90231 Ezvision 200 Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z90212](/images/no-image3.png)
Part Number:
Description:
Digital Television Controllers
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z90209](/images/no-image3.png)
Part Number:
Description:
Television Controllers
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z90102](/images/no-image3.png)
Part Number:
Description:
40-pin Low-cost Digital Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z90120](/images/no-image3.png)
Part Number:
Description:
40-pin Low-cost Digital Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z90349](/images/no-image3.png)
Part Number:
Description:
Digital Television Controller In-circuit Emulator Ice Device
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z90341](/images/no-image3.png)
Part Number:
Description:
Digital Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z90365](/images/no-image3.png)
Part Number:
Description:
Digital Television Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z16f2811](/images/no-image3.png)
Part Number:
Description:
High Performance Microcontrollers
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z16c30](/images/no-image3.png)
Part Number:
Description:
Cmos Usc Universal Serial Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z16c32](/images/no-image3.png)
Part Number:
Description:
Iusc Integrated Universal Serial Controller
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z16c01](/images/no-image3.png)
Part Number:
Description:
16-bit Processor
Manufacturer:
ZiLOG Semiconductor
Datasheet:
![z16017](/images/no-image3.png)
Part Number:
Description:
Pcmcia Interface Solution
Manufacturer:
ZiLOG Semiconductor
Datasheet: