T89C5115-RATIM Atmel, T89C5115-RATIM Datasheet - Page 28

• Manufacturer Part Number: T89C5115-RATIM
• Description: IC 8051 MCU FLASH 16K 32VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of T89C5115-RATIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: T89C5115-RASIM; T89C5115-RASIM

28
AT89C5115
Table 18. AUXR1 Register
AUXR1 (S:A2h)
Auxiliary Control Register 1
Reset Value = XXXX 00X0b
Note:
Number
7 - 6
Bit
7
5
4
3
2
1
0
-
1. ENBOOT is initialized with the invert BLJB at reset. See In-System Programming
section.
Mnemonic
ENBOOT
DPS
GF3
Bit
6
0
-
-
-
-
(1)
Description
Reserved
The value read from these bits is indeterminate. Do not set these bits.
Enable Boot Flash
Set this bit to map the boot Flash between F800h -FFFFh
Clear this bit to disable boot Flash.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
General Purpose Flag 3
Always Zero
This bit is stuck to logic 0 to allow INC AUXR1 instruction without affecting GF3
flag.
Reserved for Data Pointer Extension
Data Pointer Select bit
Set to select second dual data pointer: DPTR1.
Clear to select first dual data pointer: DPTR0.
ENBOOT
5
4
-
GF3
3
2
0
1
-
4128G–8051–02/08
DPS
0