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| 型号： | PSD4235F1-C-90MI |
| 厂商： | 意法半导体 |
| 英文描述： | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| 中文描述： | Flash在系统可编程外设的16位微控制器 |
| 文件页数： | 42/93页 |
| 文件大小： | 503K |
| 代理商： | PSD4235F1-C-90MI |
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Preliminary Information
PSD4000 Series
39
The
PSD4000
Functional
Blocks
(cont.)
9.3.4.2 MC683XX and 68HC16
Figure 15 shows a Motorola MC68331 with non-multiplexed sixteen-bit data bus and 24-bit
address bus. The data bus from the MC68331 is connected to Port F (D0-7) and Port G
(D8-D15). The SIZ0 and A0 inputs determine the high/low byte selection. The R/W, DS
and SIZ0 are connected to the CNTL0-2 pins.
The 68HC16 and other members of the 683XX family have the same connection as the
68331 shown in Figure 15.
9.3.4.3 80C51XA
The Philips 80C51XA microcontroller has a 16-bit multiplexed bus with burst cycles.
Address bits A[3:1] are not multiplexed while A[19:4] are multiplexed with data bits D[15:0].
The PSD4135G2 supports the 80C51XA burst mode. The WRH signal is connected to the
PD3 and the WRL is connected to CNTL0 pin. The RD and PSEN signal is connected to
CNTL1-2 pins. Figure 15 shows the XA schematic.
The 80C51XA improves bus throughput and performance by issuing Burst cycles to fetch
codes from memory. In Burst cycles, addresses A19-4 are latched internally by the PSD,
while the 80C51XA drives the A3-1 lines to sequentially fetch up to 16 bytes of code. The
PSD access time is then measured from address A3-A1 valid to data in valid. The PSD
bus timing requirement in Burst cycle is identical to the normal bus cycle except the
address set up or hold time with respect to ALE is not required.
9.3.4.4 H8/300
Figure 16 shows a Hitachi H8/2350 with non-multiplexed sixteen-bit data bus and 24-bit
address bus. The H8 data bus is connected to Port F (D0-7) and Port G (D8-15).
The WRL, WRH and RD signals are connected to the CNTL0, PD3 and CNTL1 pins
respectively. The AS connection is optional and is required if the address are to be
latched.
9.3.4.5 MMC2001
The Motorola MCORE MMC2001 microcontroller has a MOD input pin that selects internal
or external boot ROM. The PSD4000 can be configured as the external flash boot ROM or
as extension to the internal ROM.
The MMC2001 has a 16-bit external data bus and 20 address lines with external Chip
Select signals. The Chip Select Control Registers allow the user to customize the bus
interface and timing to fit the individual system requirement. A typical interface configura-
tion to the PSD4000 is shown in Figure 18. The MMC2001’s R/W signal is connected to
the cntl0 pin, while EB0 and EB1 (enable byte0 and byte1) are connected to the cntl1
(UDS) and cntl2 (LDS) pins. The WEN bit in the Chip Select Control Register should set to
1 to terminate the EB[0:1] earlier to provide the write data hold time for the PSD. The WSC
and WWS bits in the Control Register are set to wait states that meet the PSD access time
requirement.
Another option is to configure the EB0 and EB1 as WRL and WRH signals. In this case the
PSD4000 control setting will be: OE, WRL, WRH where OE is the read signal from the
MMC2001.
9.3.4.6 C16X Family
The PSD4000 supports Infineon’s C16X family of microcontrollers (C161-C167) in both the
multiplexed and non-multiplexed bus configuration. In Figure 19 the C167CR is shown
connected to the PSD4000 in a multiplexed bus configuration. The control signals from the
MCU are WR, RD, BHE and ALE and are routed to the corresponding PSD pins.
The C167 has another control signal setting (RD, WRL, WRH, ALE) which is also
supported by the PSD4000.
相关PDF资料 |
PDF描述 |
|---|---|
| PSD4235F1-C-90U | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4235F1-C-90UI | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4235F2-15UI | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4235F2-70UI | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
| PSD4235F2-90B81 | Flash In-System-Programmable Peripherals for 16-Bit MCUs |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PSD4235G2-70U | 功能描述:SPLD - 简单可编程逻辑器件 5.0V 4M 70ns RoHS:否 制造商:Texas Instruments 逻辑系列:TICPAL22V10Z 大电池数量:10 最大工作频率:66 MHz 延迟时间:25 ns 工作电源电压:4.75 V to 5.25 V 电源电流:100 uA 最大工作温度:+ 75 C 最小工作温度:0 C 安装风格:Through Hole 封装 / 箱体:DIP-24 |
| PSD4235G2-90U | 功能描述:CPLD - 复杂可编程逻辑器件 5.0V 4M 90ns RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100 |
| PSD4235G2-90UI | 功能描述:CPLD - 复杂可编程逻辑器件 5.0V 4M 90ns RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100 |
| PSD4235G2V-12UI | 功能描述:CPLD - 复杂可编程逻辑器件 3.3V 4M 120ns RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100 |
| PSD4235G2V-90U | 功能描述:CPLD - 复杂可编程逻辑器件 3.3V 4M 90ns RoHS:否 制造商:Lattice 系列: 存储类型:EEPROM 大电池数量:128 最大工作频率:333 MHz 延迟时间:2.7 ns 可编程输入/输出端数量:64 工作电源电压:3.3 V 最大工作温度:+ 90 C 最小工作温度:0 C 封装 / 箱体:TQFP-100 |
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