20-668-0003 Rabbit Semiconductor, 20-668-0003 Datasheet - Page 122

• Manufacturer Part Number: 20-668-0003
• Description: IC CPU RABBIT2000 30MHZ 100PQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 20-668-0003

• Processor Type: Rabbit 2000 8-Bit
• Speed: 30MHz
• Voltage: 2.7V, 3V, 3.3V, 5V
• Mounting Type: Surface Mount
• Package / Case: 100-MQFP, 100-PQFP
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 30 MHz
• Operating Supply Voltage: 0 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 40
• Number Of Timers: 8 & 10 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 20-668-0003; 316-1062

The Timer B I/O registers are listed in Table 11-4.
The control/status register for Timer B (TBCSR) is laid out as shown in Table 11-5.
The control register for Timer B (TBCR) is laid out as shown in Table 11-6.
The MSB x registers for Timer B (TBM1R/TBM2R) are laid out as shown in Table 11-7.
116
Not used
Not used
Timer B Control/Status Register
Timer B Control Register
Timer B MSB 1 Reg
Timer B LSB 1 Reg
Timer B MSB 2 Reg
Timer B LSB 2 Reg
Timer B Count MSB Reg
Timer B Count LSB Reg
Bits 7:3
Table 11-5. Timer B Control and Status Register (TBCSR) (adr = 0x0B0)
Bits 7:4
Table 11-7. Timer B MSB x Register (TBM1R/TBM2R = 0x0B2/0x0B4)
Register Name
Two most significant bits of timer
match preload register.
1—A match with match
register 2 was detected.
This bit is cleared when
this register is read;
setting this bit to 1 enables
the interrupt.
00—Counter clocked by perclk/2
01—Counter clocked by output of timer A1
1x—Timer clocked by perclk/2 divided by 8
Table 11-6. Timer B Control Register (TBCR)
Bits 7:6
Bit 2
Table 11-4. Timer B Registers
Bits 3:2
TBCSR
TBCR
TBM1R
TBL1R
TBM2R
TBL2R
TBCMR
TBCLR
Mnemonic
Register
1—A match with match
register 1 was detected.
This bit is cleared when
this register is read;
setting this bit to 1 enables
the interrupt.
Not used.
Rabbit 2000 Microprocessor User’s Manual
Bit 1
B0
B1
B2
B3
B4
B5
BE
BF
Bits 5:0
Address
(hex)
00—Interrupt disabled
xx—Interrupt priority xx enabled.
I/O
1—Enable the main clock
for this timer.
R/W xxxxx000
W
W
W
W
R
R
R/W
Bits 1:0
xxxxxx00
x
x
x
x
x
x
Bit 0
On Reset
To