MC68376BAMFT20 Freescale Semiconductor, MC68376BAMFT20 Datasheet - Page 336

• Manufacturer Part Number: MC68376BAMFT20
• Manufacturer: Freescale Semiconductor

Specifications of MC68376BAMFT20

• Cpu Family: 68K/M683xx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 20MHz
• Interface Type: QSPI/SCI
• Program Memory Type: ROM
• Program Memory Size: 8KB
• Total Internal Ram Size: 7.5KB
• # I/os (max): 18
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• On-chip Adc: 16-chx10-bit
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 160
• Package Type: PQFP
• Lead Free Status / Rohs Status: Not Compliant

D.2.20 Chip-Select Option Register Boot ROM
CSORBT — Chip-Select Option Register Boot ROM
D.2.21 Chip-Select Option Registers
CSOR[0:10] — Chip-Select Option Registers
MODE — Asynchronous/Synchronous Mode
BYTE[1:0] — Upper/Lower Byte Option
D-18
MOTOROLA
MODE
MODE
15
15
0
0
RESET:
RESET:
CSORBT and CSOR[0:10] contain parameters that support bootstrap operations from
peripheral memory devices. Bit and field definitions for CSORBT and CSOR[0:10] are
the same.
In asynchronous mode, chip-select assertion is synchronized with AS and DS.
In synchronous mode, the DSACK field is not used because a bus cycle is only per-
formed as a synchronous operation. When a match condition occurs on a chip-select
programmed for synchronous operation, the chip-select signals the EBI that an E-
clock cycle is pending. Refer to 5.3 System Clock for more information on ECLK.
This field is used only when the chip-select 16-bit port option is selected in the pin as-
signment register. Table D-14 shows upper/lower byte options.
0 = Asynchronous mode selected.
1 = Synchronous mode selected.
14
14
1
0
BYTE[1:0]
BYTE[1:0]
13
13
1
0
12
12
1
0
R/W[1:0]
R/W[1:0]
Table D-13 Block Size Field Bit Encoding
BLKSZ[2:0]
11
11
1
0
000
001
010
011
100
101
110
111
STRB
STRB
10
10
0
0
REGISTER SUMMARY
Block Size
128 Kbytes
256 Kbytes
512 Kbytes
9
1
9
0
16 Kbytes
64 Kbytes
2 Kbytes
8 Kbytes
1 Mbyte
DSACK[3:0]
DSACK[3:0]
8
1
8
0
7
0
7
0
Address Lines Compared
ADDR[23:11]
ADDR[23:13]
ADDR[23:14]
ADDR[23:16]
ADDR[23:17]
ADDR[23:18]
ADDR[23:19]
ADDR[23:20]
6
1
6
0
SPACE[1:0]
SPACE[1:0]
5
1
5
0
4
1
4
0
$YFFA4E–YFFA76
3
0
3
0
IPL[2:0]
IPL[2:0]
USER’S MANUAL
2
0
2
0
MC68336/376
$YFFA4A
1
0
1
0
AVEC
AVEC
0
0
0
0